WIFI frequently down (19.07.3, TP-Link Archer C2600)

Installing and Using OpenWrt
1

Hi
I am using OpenWRT 19.07.3 on an TP-Link Archer C2600
At least once a day I have several issues:

  • Internet connection is down although I can see that my laptop is still connected to the WIFI. When I connect to another radio (e.g the 5GHz Radio), the connection will be established again.
    Most of the time when that happens, the other radio (e.g. 2.4 GHz) is gone an will not be shown any more in the list of available WiFis on the laptop
  • It could also happen that one of my two radios just dissapears on the computer's list of available WiFis.

I already setup the wireless using settings like
option disassoc_low_ack '0'
but with no positive effect.

I hope somebody can help me here.

My wireless configuration:


config wifi-device 'radio0'
	option type 'mac80211'
	option hwmode '11a'
	option path 'soc/1b500000.pci/pci0000:00/0000:00:00.0/0000:01:00.0'
	option country 'DE'
	option htmode 'VHT80'
	option channel 'auto'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'soc/1b700000.pci/pci0001:00/0001:00:00.0/0001:01:00.0'
	option country 'DE'
	option hwmode '11g'
	option channel 'auto'
	option htmode 'HT40'

config wifi-iface 'default_radio1'
	option disassoc_low_ack '0'
	option device 'radio1'
	option mode 'ap'
	option key 'Secret'
	option encryption 'psk2+ccmp'
	option macfilter 'allow'
	list maclist 'AA:BB:CC:DD:EE:FF'
    ...long list
	list maclist '00:11:22:33:44:55'
	option ssid 'ssid2'
	option network 'lan'

config wifi-iface 'wifinet1'
	option disassoc_low_ack '0'
	option device 'radio1'
	option mode 'ap'
	option network 'guest'
	option encryption 'psk2+ccmp'
	option ssid 'ssidguest'
	option key 'secret'

config wifi-iface 'wifinet2'
	option disassoc_low_ack '0'
	option ssid 'ssid2-5'
	option encryption 'psk2+ccmp'
	option device 'radio0'
	option mode 'ap'
	option network 'lan'
	option key 'secret'
	option macfilter 'allow'
	list maclist 'AA:BB:CC:DD:EE:FF'
    ...long list
	list maclist '00:11:22:33:44:55'

Here the kernel log:

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.14.180 (builder@buildhost) (gcc version 7.5.0 (OpenWrt GCC 7.5.0 r11063-85e04e9f46)) #0 SMP Sat May 16 18:32:20 2020
[    0.000000] CPU: ARMv7 Processor [512f04d0] revision 0 (ARMv7), cr=10c5787d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] OF: fdt: Machine model: TP-Link Archer C2600
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] On node 0 totalpages: 122880
[    0.000000] free_area_init_node: node 0, pgdat c0a27840, node_mem_map ddc39000
[    0.000000]   Normal zone: 960 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 122880 pages, LIFO batch:31
[    0.000000] random: get_random_bytes called from 0xc09008dc with crng_init=0
[    0.000000] percpu: Embedded 15 pages/cpu s29388 r8192 d23860 u61440
[    0.000000] pcpu-alloc: s29388 r8192 d23860 u61440 alloc=15*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 121920
[    0.000000] Kernel command line: 
[    0.000000] Bootloader command line (ignored): console=ttyHSL1,115200n8 root=mtd:rootfs rootfstype=squashfs
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 479424K/491520K available (4976K kernel code, 160K rwdata, 756K rodata, 1024K init, 235K bss, 12096K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xde800000 - 0xff800000   ( 528 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xde000000   ( 480 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0208000 - 0xc07dc1e0   (5969 kB)
[    0.000000]       .init : 0xc0900000 - 0xc0a00000   (1024 kB)
[    0.000000]       .data : 0xc0a00000 - 0xc0a28140   ( 161 kB)
[    0.000000]        .bss : 0xc0a2a000 - 0xc0a64e18   ( 236 kB)

...

[   12.077615] kmodloader: loading kernel modules from /etc/modules.d/*
[   12.096491] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   12.099850] Loading modules backported from Linux version v4.19.120-0-gfdc072324f3c
[   12.100862] Backport generated by backports.git v4.19.120-1-0-g60c3a249
[   12.106146] urngd: v1.0.2 started.
[   12.111180] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.121740] nf_conntrack version 0.5.0 (8192 buckets, 32768 max)
[   12.144014] xt_time: kernel timezone is -0000
[   12.159950] PPP generic driver version 2.4.2
[   12.160769] NET: Registered protocol family 24
[   12.170184] ath10k_pci 0000:01:00.0: assign IRQ: got 66
[   12.170206] ath10k 4.19 driver, optimized for CT firmware, probing pci device: 0x40.
[   12.170921] ath10k_pci 0000:01:00.0: enabling device (0140 -> 0142)
[   12.177169] ath10k_pci 0000:01:00.0: enabling bus mastering
[   12.177730] ath10k_pci 0000:01:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
[   12.359272] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/fwcfg-pci-0000:01:00.0.txt failed with error -2
[   12.359308] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.453828] firmware ath10k!fwcfg-pci-0000:01:00.0.txt: firmware_loading_store: map pages failed
[   12.457363] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-5.bin failed with error -2
[   12.461681] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.520063] firmware ath10k!QCA99X0!hw2.0!ct-firmware-5.bin: firmware_loading_store: map pages failed
[   12.520268] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-2.bin failed with error -2
[   12.528351] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.562207] firmware ath10k!QCA99X0!hw2.0!ct-firmware-2.bin: firmware_loading_store: map pages failed
[   12.562447] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/firmware-6.bin failed with error -2
[   12.570494] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.605931] firmware ath10k!QCA99X0!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
[   13.608777] ath10k_pci 0000:01:00.0: qca99x0 hw2.0 target 0x01000000 chip_id 0x003b01ff sub 168c:0002
[   13.608813] ath10k_pci 0000:01:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   13.619696] ath10k_pci 0000:01:00.0: firmware ver 10.4b-ct-9980-fW-012-17ba9833 api 5 features mfp,peer-flow-ctrl,txstatus-noack,wmi-10.x-CT,ratemask-CT,regdump-CT,txrate-CT,flush-all-CT,pingpong-CT,ch-regs-CT,nop-CT,set-special-CT,tx-rc-CT,cust-stats-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT,wmi-bcn-rc-CT crc32 0fb1435e
[   13.690190] ath10k_pci 0000:01:00.0: board_file api 2 bmi_id 1:1 crc32 08fa09f2
[   14.876239] ath10k_pci 0000:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   14.876269] ath10k_pci 0000:01:00.0: msdu-desc: 2500  skid: 32
[   14.952097] ath10k_pci 0000:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   14.952841] ath10k_pci 0000:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   15.195094] ath10k_pci 0000:01:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal pre-cal-file max-sta 32 raw 0 hwcrypto 1
[   15.291252] ath: EEPROM regdomain: 0x0
[   15.291260] ath: EEPROM indicates default country code should be used
[   15.291267] ath: doing EEPROM country->regdmn map search
[   15.291279] ath: country maps to regdmn code: 0x3a
[   15.291308] ath: Country alpha2 being used: US
[   15.291316] ath: Regpair used: 0x3a
[   15.303626] ath10k_pci 0001:01:00.0: assign IRQ: got 99
[   15.303709] ath10k 4.19 driver, optimized for CT firmware, probing pci device: 0x40.
[   15.304791] ath10k_pci 0001:01:00.0: enabling device (0140 -> 0142)
[   15.310650] ath10k_pci 0001:01:00.0: enabling bus mastering
[   15.311174] ath10k_pci 0001:01:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
[   15.493367] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/fwcfg-pci-0001:01:00.0.txt failed with error -2
[   15.493416] ath10k_pci 0001:01:00.0: Falling back to user helper
[   15.814032] firmware ath10k!fwcfg-pci-0001:01:00.0.txt: firmware_loading_store: map pages failed
[   16.757760] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-5.bin failed with error -2
[   16.757792] ath10k_pci 0001:01:00.0: Falling back to user helper
[   16.789092] firmware ath10k!QCA99X0!hw2.0!ct-firmware-5.bin: firmware_loading_store: map pages failed
[   16.789260] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-2.bin failed with error -2
[   16.797393] ath10k_pci 0001:01:00.0: Falling back to user helper
[   16.828294] firmware ath10k!QCA99X0!hw2.0!ct-firmware-2.bin: firmware_loading_store: map pages failed
[   16.828455] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/firmware-6.bin failed with error -2
[   16.836563] ath10k_pci 0001:01:00.0: Falling back to user helper
[   16.868457] firmware ath10k!QCA99X0!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
[   16.868592] ath10k_pci 0001:01:00.0: qca99x0 hw2.0 target 0x01000000 chip_id 0x003b01ff sub 168c:0002
[   16.876397] ath10k_pci 0001:01:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   16.887670] ath10k_pci 0001:01:00.0: firmware ver 10.4b-ct-9980-fW-012-17ba9833 api 5 features mfp,peer-flow-ctrl,txstatus-noack,wmi-10.x-CT,ratemask-CT,regdump-CT,txrate-CT,flush-all-CT,pingpong-CT,ch-regs-CT,nop-CT,set-special-CT,tx-rc-CT,cust-stats-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT,wmi-bcn-rc-CT crc32 0fb1435e
[   16.958768] ath10k_pci 0001:01:00.0: board_file api 2 bmi_id 1:2 crc32 08fa09f2
[   18.438403] ath10k_pci 0001:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   18.438431] ath10k_pci 0001:01:00.0: msdu-desc: 2500  skid: 32
[   18.516216] ath10k_pci 0001:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   18.517019] ath10k_pci 0001:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   18.708337] ath10k_pci 0001:01:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal pre-cal-file max-sta 32 raw 0 hwcrypto 1
[   18.862229] ath: EEPROM regdomain: 0x0
[   18.862241] ath: EEPROM indicates default country code should be used
[   18.862249] ath: doing EEPROM country->regdmn map search
[   18.862265] ath: country maps to regdmn code: 0x3a
[   18.862276] ath: Country alpha2 being used: US
[   18.862285] ath: Regpair used: 0x3a
[   18.870288] kmodloader: done loading kernel modules from /etc/modules.d/*
[   22.523544] Generic PHY fixed-0:01: attached PHY driver [Generic PHY] (mii_bus:phy_addr=fixed-0:01, irq=POLL)
[   22.524300] dwmac1000: Master AXI performs any burst length
[   22.532448] ipq806x-gmac-dwmac 37400000.ethernet eth1: IEEE 1588-2008 Advanced Timestamp supported
[   22.538025] ipq806x-gmac-dwmac 37400000.ethernet eth1: registered PTP clock
[   22.547004] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   22.560923] br-lan: port 1(eth1.1) entered blocking state
[   22.560952] br-lan: port 1(eth1.1) entered disabled state
[   22.565618] device eth1.1 entered promiscuous mode
[   22.570680] device eth1 entered promiscuous mode
[   22.578467] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
[   22.585900] Generic PHY fixed-0:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=fixed-0:00, irq=POLL)
[   22.586936] dwmac1000: Master AXI performs any burst length
[   22.596042] ipq806x-gmac-dwmac 37200000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[   22.601423] ipq806x-gmac-dwmac 37200000.ethernet eth0: registered PTP clock
[   22.610991] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   22.624668] IPv6: ADDRCONF(NETDEV_UP): eth0.2: link is not ready
[   22.627027] IPv6: ADDRCONF(NETDEV_UP): br-guest: link is not ready
[   23.107358] ath: EEPROM regdomain: 0x8114
[   23.107378] ath: EEPROM indicates we should expect a country code
[   23.110353] ath: doing EEPROM country->regdmn map search
[   23.116499] ath: country maps to regdmn code: 0x37
[   23.121797] ath: Country alpha2 being used: DE
[   23.126474] ath: Regpair used: 0x37
[   23.130828] ath: regdomain 0x8114 dynamically updated by user
[   23.134305] ath: EEPROM regdomain: 0x8114
[   23.140114] ath: EEPROM indicates we should expect a country code
[   23.144185] ath: doing EEPROM country->regdmn map search
[   23.150185] ath: country maps to regdmn code: 0x37
[   23.155621] ath: Country alpha2 being used: DE
[   23.160165] ath: Regpair used: 0x37
[   23.164651] ath: regdomain 0x8114 dynamically updated by user
[   23.593293] ipq806x-gmac-dwmac 37400000.ethernet eth1: Link is Up - 1Gbps/Full - flow control off
[   23.606027] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   23.606588] br-lan: port 1(eth1.1) entered blocking state
[   23.611120] br-lan: port 1(eth1.1) entered forwarding state
[   23.616936] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[   23.673267] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[   23.673408] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   23.682012] IPv6: ADDRCONF(NETDEV_CHANGE): eth0.2: link becomes ready
[   26.025273] ath10k_pci 0001:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   26.025307] ath10k_pci 0001:01:00.0: msdu-desc: 2500  skid: 32
[   26.103019] ath10k_pci 0001:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   26.103852] ath10k_pci 0001:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   26.454139] ath10k_pci 0001:01:00.0: Firmware lacks feature flag indicating a retry limit of > 2 is OK, requested limit: 4
[   26.454421] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[   27.023217] ath10k_pci 0001:01:00.0: NOTE:  Firmware DBGLOG output disabled in debug_mask: 0x10000000
[   27.747412] ath10k_pci 0000:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   27.747440] ath10k_pci 0000:01:00.0: msdu-desc: 2500  skid: 32
[   27.823343] ath10k_pci 0000:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   27.824131] ath10k_pci 0000:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   28.158239] ath10k_pci 0000:01:00.0: Firmware lacks feature flag indicating a retry limit of > 2 is OK, requested limit: 4
[   28.158478] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   28.170696] br-lan: port 2(wlan1) entered blocking state
[   28.174119] br-lan: port 2(wlan1) entered disabled state
[   28.180114] device wlan1 entered promiscuous mode
[   28.185501] br-lan: port 3(wlan0) entered blocking state
[   28.189450] br-lan: port 3(wlan0) entered disabled state
[   28.195062] device wlan0 entered promiscuous mode
[   40.902422] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[   40.902736] br-lan: port 2(wlan1) entered blocking state
[   40.907996] br-lan: port 2(wlan1) entered forwarding state
[   40.924390] br-guest: port 1(wlan1-1) entered blocking state
[   40.924422] br-guest: port 1(wlan1-1) entered disabled state
[   40.929339] device wlan1-1 entered promiscuous mode
[   40.943027] IPv6: ADDRCONF(NETDEV_UP): wlan1-1: link is not ready
[   40.943167] br-guest: port 1(wlan1-1) entered blocking state
[   40.948110] br-guest: port 1(wlan1-1) entered forwarding state
[   40.954081] IPv6: ADDRCONF(NETDEV_CHANGE): br-guest: link becomes ready
[   41.044716] ath10k_pci 0001:01:00.0: failed to pull fw stats: -71
[   42.084742] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1-1: link becomes ready
[  110.640877] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  110.641003] br-lan: port 3(wlan0) entered blocking state
[  110.646367] br-lan: port 3(wlan0) entered forwarding state

Maybe somebody can help me. The log is to big to completely paste it here (how can I attach Log-files?)

I should mention that I am not a developer and can not compile anything. I feel able to update/downgrade, setup the system and also install things, but I did not really understand anything I found on githup when I followed the links I found in several relating threads..

Regards Ralf

2

I just had the issue again.
Here some lines from the system log

Wed Aug  5 12:00:00 2020 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED 10:ae:60:80:f4:fc
Wed Aug  5 12:00:00 2020 daemon.info hostapd: wlan1: STA 10:ae:60:80:f4:fc IEEE 802.11: disassociated
Wed Aug  5 12:00:01 2020 daemon.info hostapd: wlan1: STA 10:ae:60:80:f4:fc IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Wed Aug  5 12:19:00 2020 cron.err crond[793]: user root: parse error at This
Wed Aug  5 12:19:00 2020 cron.err crond[793]: user root: parse error at has
Wed Aug  5 12:19:00 2020 cron.err crond[793]: user root: parse error at the
Wed Aug  5 12:19:00 2020 cron.err crond[793]: user root: parse error at username
Wed Aug  5 12:19:00 2020 cron.err crond[793]: user root: parse error at field,
Wed Aug  5 12:29:53 2020 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 04:d6:aa:f2:a6:88
Wed Aug  5 12:29:53 2020 daemon.info hostapd: wlan0: STA 04:d6:aa:f2:a6:88 IEEE 802.11: disassociated
Wed Aug  5 12:29:54 2020 daemon.info hostapd: wlan0: STA 04:d6:aa:f2:a6:88 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Wed Aug  5 13:12:38 2020 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 4c:1d:96:c5:8d:ed
Wed Aug  5 13:12:38 2020 daemon.info hostapd: wlan0: STA 4c:1d:96:c5:8d:ed IEEE 802.11: authenticated
Wed Aug  5 13:12:38 2020 daemon.info hostapd: wlan0: STA 4c:1d:96:c5:8d:ed IEEE 802.11: associated (aid 3)
Wed Aug  5 13:12:38 2020 daemon.notice hostapd: wlan0: STA-OPMODE-SMPS-MODE-CHANGED 4c:1d:96:c5:8d:ed off
Wed Aug  5 13:12:38 2020 daemon.notice hostapd: wlan0: AP-STA-CONNECTED 4c:1d:96:c5:8d:ed
Wed Aug  5 13:12:38 2020 daemon.info hostapd: wlan0: STA 4c:1d:96:c5:8d:ed WPA: pairwise key handshake completed (RSN)
Wed Aug  5 13:12:48 2020 daemon.err uhttpd[823]: luci: accepted login on / for root from 192.168.111.68

Kernel log

[    4.520078] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    4.539804] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    4.541542] SCSI subsystem initialized
[    4.547382] libata version 3.00 loaded.
[    4.549899] ehci-platform: EHCI generic platform driver
[    4.552227] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    4.554514] ohci-platform: OHCI generic platform driver
[    4.690903] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    4.691000] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[    4.695775] xhci-hcd xhci-hcd.0.auto: hcc params 0x0228f065 hci version 0x100 quirks 0x0000000002010010
[    4.702956] xhci-hcd xhci-hcd.0.auto: irq 106, io mem 0x11000000
[    4.713099] hub 1-0:1.0: USB hub found
[    4.718492] hub 1-0:1.0: 1 port detected
[    4.722308] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    4.726199] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[    4.731405] xhci-hcd xhci-hcd.0.auto: Host supports USB 3.0  SuperSpeed
[    4.739120] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    4.745950] hub 2-0:1.0: USB hub found
[    4.753979] hub 2-0:1.0: 1 port detected
[    4.757679] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    4.761534] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3
[    4.767030] xhci-hcd xhci-hcd.1.auto: hcc params 0x0228f065 hci version 0x100 quirks 0x0000000002010010
[    4.774469] xhci-hcd xhci-hcd.1.auto: irq 107, io mem 0x10000000
[    4.784200] hub 3-0:1.0: USB hub found
[    4.790012] hub 3-0:1.0: 1 port detected
[    4.793825] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    4.797637] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 4
[    4.802932] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0  SuperSpeed
[    4.810617] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
[    4.817492] hub 4-0:1.0: USB hub found
[    4.825520] hub 4-0:1.0: 1 port detected
[    4.830464] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    4.840022] init: - preinit -
[    7.100836] Generic PHY fixed-0:01: attached PHY driver [Generic PHY] (mii_bus:phy_addr=fixed-0:01, irq=POLL)
[    7.102459] dwmac1000: Master AXI performs any burst length
[    7.109870] ipq806x-gmac-dwmac 37400000.ethernet eth1: IEEE 1588-2008 Advanced Timestamp supported
[    7.115422] ipq806x-gmac-dwmac 37400000.ethernet eth1: registered PTP clock
[    7.125100] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[    8.153850] ipq806x-gmac-dwmac 37400000.ethernet eth1: Link is Up - 1Gbps/Full - flow control off
[    8.153950] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   10.826851] jffs2: notice: (139) jffs2_build_xattr_subsystem: complete building xattr subsystem, 7 of xdatum (3 unchecked, 4 orphan) and 32 of xref (4 dead, 0 orphan) found.
[   10.839464] mount_root: switching to jffs2 overlay
[   10.858696] overlayfs: upper fs does not support tmpfile.
[   10.892482] urandom-seed: Seeding with /etc/urandom.seed
[   11.031500] procd: - early -
[   11.031654] procd: - watchdog -
[   11.731710] procd: - watchdog -
[   11.732218] procd: - ubus -
[   11.810772] procd: - init -
[   12.077615] kmodloader: loading kernel modules from /etc/modules.d/*
[   12.096491] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   12.099850] Loading modules backported from Linux version v4.19.120-0-gfdc072324f3c
[   12.100862] Backport generated by backports.git v4.19.120-1-0-g60c3a249
[   12.106146] urngd: v1.0.2 started.
[   12.111180] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.121740] nf_conntrack version 0.5.0 (8192 buckets, 32768 max)
[   12.144014] xt_time: kernel timezone is -0000
[   12.159950] PPP generic driver version 2.4.2
[   12.160769] NET: Registered protocol family 24
[   12.170184] ath10k_pci 0000:01:00.0: assign IRQ: got 66
[   12.170206] ath10k 4.19 driver, optimized for CT firmware, probing pci device: 0x40.
[   12.170921] ath10k_pci 0000:01:00.0: enabling device (0140 -> 0142)
[   12.177169] ath10k_pci 0000:01:00.0: enabling bus mastering
[   12.177730] ath10k_pci 0000:01:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
[   12.359272] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/fwcfg-pci-0000:01:00.0.txt failed with error -2
[   12.359308] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.453828] firmware ath10k!fwcfg-pci-0000:01:00.0.txt: firmware_loading_store: map pages failed
[   12.457363] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-5.bin failed with error -2
[   12.461681] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.520063] firmware ath10k!QCA99X0!hw2.0!ct-firmware-5.bin: firmware_loading_store: map pages failed
[   12.520268] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-2.bin failed with error -2
[   12.528351] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.562207] firmware ath10k!QCA99X0!hw2.0!ct-firmware-2.bin: firmware_loading_store: map pages failed
[   12.562447] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/firmware-6.bin failed with error -2
[   12.570494] ath10k_pci 0000:01:00.0: Falling back to user helper
[   12.605931] firmware ath10k!QCA99X0!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
[   13.608777] ath10k_pci 0000:01:00.0: qca99x0 hw2.0 target 0x01000000 chip_id 0x003b01ff sub 168c:0002
[   13.608813] ath10k_pci 0000:01:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   13.619696] ath10k_pci 0000:01:00.0: firmware ver 10.4b-ct-9980-fW-012-17ba9833 api 5 features mfp,peer-flow-ctrl,txstatus-noack,wmi-10.x-CT,ratemask-CT,regdump-CT,txrate-CT,flush-all-CT,pingpong-CT,ch-regs-CT,nop-CT,set-special-CT,tx-rc-CT,cust-stats-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT,wmi-bcn-rc-CT crc32 0fb1435e
[   13.690190] ath10k_pci 0000:01:00.0: board_file api 2 bmi_id 1:1 crc32 08fa09f2
[   14.876239] ath10k_pci 0000:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   14.876269] ath10k_pci 0000:01:00.0: msdu-desc: 2500  skid: 32
[   14.952097] ath10k_pci 0000:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   14.952841] ath10k_pci 0000:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   15.195094] ath10k_pci 0000:01:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal pre-cal-file max-sta 32 raw 0 hwcrypto 1
[   15.291252] ath: EEPROM regdomain: 0x0
[   15.291260] ath: EEPROM indicates default country code should be used
[   15.291267] ath: doing EEPROM country->regdmn map search
[   15.291279] ath: country maps to regdmn code: 0x3a
[   15.291308] ath: Country alpha2 being used: US
[   15.291316] ath: Regpair used: 0x3a
[   15.303626] ath10k_pci 0001:01:00.0: assign IRQ: got 99
[   15.303709] ath10k 4.19 driver, optimized for CT firmware, probing pci device: 0x40.
[   15.304791] ath10k_pci 0001:01:00.0: enabling device (0140 -> 0142)
[   15.310650] ath10k_pci 0001:01:00.0: enabling bus mastering
[   15.311174] ath10k_pci 0001:01:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
[   15.493367] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/fwcfg-pci-0001:01:00.0.txt failed with error -2
[   15.493416] ath10k_pci 0001:01:00.0: Falling back to user helper
[   15.814032] firmware ath10k!fwcfg-pci-0001:01:00.0.txt: firmware_loading_store: map pages failed
[   16.757760] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-5.bin failed with error -2
[   16.757792] ath10k_pci 0001:01:00.0: Falling back to user helper
[   16.789092] firmware ath10k!QCA99X0!hw2.0!ct-firmware-5.bin: firmware_loading_store: map pages failed
[   16.789260] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/ct-firmware-2.bin failed with error -2
[   16.797393] ath10k_pci 0001:01:00.0: Falling back to user helper
[   16.828294] firmware ath10k!QCA99X0!hw2.0!ct-firmware-2.bin: firmware_loading_store: map pages failed
[   16.828455] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/firmware-6.bin failed with error -2
[   16.836563] ath10k_pci 0001:01:00.0: Falling back to user helper
[   16.868457] firmware ath10k!QCA99X0!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
[   16.868592] ath10k_pci 0001:01:00.0: qca99x0 hw2.0 target 0x01000000 chip_id 0x003b01ff sub 168c:0002
[   16.876397] ath10k_pci 0001:01:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[   16.887670] ath10k_pci 0001:01:00.0: firmware ver 10.4b-ct-9980-fW-012-17ba9833 api 5 features mfp,peer-flow-ctrl,txstatus-noack,wmi-10.x-CT,ratemask-CT,regdump-CT,txrate-CT,flush-all-CT,pingpong-CT,ch-regs-CT,nop-CT,set-special-CT,tx-rc-CT,cust-stats-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT,wmi-bcn-rc-CT crc32 0fb1435e
[   16.958768] ath10k_pci 0001:01:00.0: board_file api 2 bmi_id 1:2 crc32 08fa09f2
[   18.438403] ath10k_pci 0001:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   18.438431] ath10k_pci 0001:01:00.0: msdu-desc: 2500  skid: 32
[   18.516216] ath10k_pci 0001:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   18.517019] ath10k_pci 0001:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   18.708337] ath10k_pci 0001:01:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal pre-cal-file max-sta 32 raw 0 hwcrypto 1
[   18.862229] ath: EEPROM regdomain: 0x0
[   18.862241] ath: EEPROM indicates default country code should be used
[   18.862249] ath: doing EEPROM country->regdmn map search
[   18.862265] ath: country maps to regdmn code: 0x3a
[   18.862276] ath: Country alpha2 being used: US
[   18.862285] ath: Regpair used: 0x3a
[   18.870288] kmodloader: done loading kernel modules from /etc/modules.d/*
[   22.523544] Generic PHY fixed-0:01: attached PHY driver [Generic PHY] (mii_bus:phy_addr=fixed-0:01, irq=POLL)
[   22.524300] dwmac1000: Master AXI performs any burst length
[   22.532448] ipq806x-gmac-dwmac 37400000.ethernet eth1: IEEE 1588-2008 Advanced Timestamp supported
[   22.538025] ipq806x-gmac-dwmac 37400000.ethernet eth1: registered PTP clock
[   22.547004] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   22.560923] br-lan: port 1(eth1.1) entered blocking state
[   22.560952] br-lan: port 1(eth1.1) entered disabled state
[   22.565618] device eth1.1 entered promiscuous mode
[   22.570680] device eth1 entered promiscuous mode
[   22.578467] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
[   22.585900] Generic PHY fixed-0:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=fixed-0:00, irq=POLL)
[   22.586936] dwmac1000: Master AXI performs any burst length
[   22.596042] ipq806x-gmac-dwmac 37200000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[   22.601423] ipq806x-gmac-dwmac 37200000.ethernet eth0: registered PTP clock
[   22.610991] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   22.624668] IPv6: ADDRCONF(NETDEV_UP): eth0.2: link is not ready
[   22.627027] IPv6: ADDRCONF(NETDEV_UP): br-guest: link is not ready
[   23.107358] ath: EEPROM regdomain: 0x8114
[   23.107378] ath: EEPROM indicates we should expect a country code
[   23.110353] ath: doing EEPROM country->regdmn map search
[   23.116499] ath: country maps to regdmn code: 0x37
[   23.121797] ath: Country alpha2 being used: DE
[   23.126474] ath: Regpair used: 0x37
[   23.130828] ath: regdomain 0x8114 dynamically updated by user
[   23.134305] ath: EEPROM regdomain: 0x8114
[   23.140114] ath: EEPROM indicates we should expect a country code
[   23.144185] ath: doing EEPROM country->regdmn map search
[   23.150185] ath: country maps to regdmn code: 0x37
[   23.155621] ath: Country alpha2 being used: DE
[   23.160165] ath: Regpair used: 0x37
[   23.164651] ath: regdomain 0x8114 dynamically updated by user
[   23.593293] ipq806x-gmac-dwmac 37400000.ethernet eth1: Link is Up - 1Gbps/Full - flow control off
[   23.606027] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   23.606588] br-lan: port 1(eth1.1) entered blocking state
[   23.611120] br-lan: port 1(eth1.1) entered forwarding state
[   23.616936] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[   23.673267] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[   23.673408] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   23.682012] IPv6: ADDRCONF(NETDEV_CHANGE): eth0.2: link becomes ready
[   26.025273] ath10k_pci 0001:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   26.025307] ath10k_pci 0001:01:00.0: msdu-desc: 2500  skid: 32
[   26.103019] ath10k_pci 0001:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   26.103852] ath10k_pci 0001:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   26.454139] ath10k_pci 0001:01:00.0: Firmware lacks feature flag indicating a retry limit of > 2 is OK, requested limit: 4
[   26.454421] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[   27.023217] ath10k_pci 0001:01:00.0: NOTE:  Firmware DBGLOG output disabled in debug_mask: 0x10000000
[   27.747412] ath10k_pci 0000:01:00.0: 10.4 wmi init: vdevs: 16  peers: 48  tid: 96
[   27.747440] ath10k_pci 0000:01:00.0: msdu-desc: 2500  skid: 32
[   27.823343] ath10k_pci 0000:01:00.0: wmi print 'P 48/48 V 16 K 144 PH 176 T 186  msdu-desc: 2500  sw-crypt: 0 ct-sta: 0'
[   27.824131] ath10k_pci 0000:01:00.0: wmi print 'free: 34244 iram: 32964 sram: 6508'
[   28.158239] ath10k_pci 0000:01:00.0: Firmware lacks feature flag indicating a retry limit of > 2 is OK, requested limit: 4
[   28.158478] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   28.170696] br-lan: port 2(wlan1) entered blocking state
[   28.174119] br-lan: port 2(wlan1) entered disabled state
[   28.180114] device wlan1 entered promiscuous mode
[   28.185501] br-lan: port 3(wlan0) entered blocking state
[   28.189450] br-lan: port 3(wlan0) entered disabled state
[   28.195062] device wlan0 entered promiscuous mode
[   40.902422] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[   40.902736] br-lan: port 2(wlan1) entered blocking state
[   40.907996] br-lan: port 2(wlan1) entered forwarding state
[   40.924390] br-guest: port 1(wlan1-1) entered blocking state
[   40.924422] br-guest: port 1(wlan1-1) entered disabled state
[   40.929339] device wlan1-1 entered promiscuous mode
[   40.943027] IPv6: ADDRCONF(NETDEV_UP): wlan1-1: link is not ready
[   40.943167] br-guest: port 1(wlan1-1) entered blocking state
[   40.948110] br-guest: port 1(wlan1-1) entered forwarding state
[   40.954081] IPv6: ADDRCONF(NETDEV_CHANGE): br-guest: link becomes ready
[   41.044716] ath10k_pci 0001:01:00.0: failed to pull fw stats: -71
[   42.084742] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1-1: link becomes ready
[  110.640877] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  110.641003] br-lan: port 3(wlan0) entered blocking state
[  110.646367] br-lan: port 3(wlan0) entered forwarding state
[408131.967048] ------------[ cut here ]------------
[408131.967098] WARNING: CPU: 0 PID: 1778 at backports-4.19.120-1/net/wireless/util.c:1147 0xbf1e5d88 [cfg80211@bf1e1000+0x37000]
[408131.970764] invalid rate bw=0, mcs=15, nss=4
[408131.982147] Modules linked in: pppoe ppp_async ath10k_pci ath10k_core ath pppox ppp_generic nf_conntrack_ipv6 mac80211 iptable_nat ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_FLOWOFFLOAD xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ip_tables crc_ccitt compat ledtrig_usbport nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 leds_gpio xhci_plat_hcd xhci_pci xhci_hcd dwc3 dwc3_of_simple ohci_platform ohci_hcd phy_qcom_dwc3 ahci ehci_platform
[408132.034960]  sd_mod ahci_platform libahci_platform libahci libata scsi_mod ehci_hcd gpio_button_hotplug
[408132.057203] CPU: 0 PID: 1778 Comm: hostapd Not tainted 4.14.180 #0
[408132.066742] Hardware name: Generic DT based system
[408132.072739] Function entered at [<c030f1c4>] from [<c030b390>]
[408132.077596] Function entered at [<c030b390>] from [<c07c09c4>]
[408132.083499] Function entered at [<c07c09c4>] from [<c031f878>]
[408132.089403] Function entered at [<c031f878>] from [<c031f8d8>]
[408132.095302] Function entered at [<c031f8d8>] from [<bf1e5d88>]
[408132.101246] Function entered at [<bf1e5d88>] from [<bf1f383c>]
[408132.107113] Function entered at [<bf1f383c>] from [<bf200654>]
[408132.113018] Function entered at [<bf200654>] from [<bf201248>]
[408132.118916] Function entered at [<bf201248>] from [<bf234b68>]
[408132.124836] Function entered at [<bf234b68>] from [<bf234bfc>]
[408132.130722] Function entered at [<bf234bfc>] from [<bf234c94>]
[408132.136623] Function entered at [<bf234c94>] from [<bf1ef6d8>]
[408132.142529] Function entered at [<bf1ef6d8>] from [<c06e1a1c>]
[408132.148429] Function entered at [<c06e1a1c>] from [<c06e0238>]
[408132.154330] Function entered at [<c06e0238>] from [<c06e0a10>]
[408132.160232] Function entered at [<c06e0a10>] from [<c06dfa48>]
[408132.166135] Function entered at [<c06dfa48>] from [<c06dfe64>]
[408132.172037] Function entered at [<c06dfe64>] from [<c0689d5c>]
[408132.177943] Function entered at [<c0689d5c>] from [<c068a5c4>]
[408132.183843] Function entered at [<c068a5c4>] from [<c0307b60>]
[408132.189857] ---[ end trace 5f9e6da3325641d0 ]---

Hope this helps

Regards
Ralf

3

Likely unrelated to your wifi question, but you should check your cronjobs, something seems wrong there.

1 Like
4

Thanks for the hint.
My cron jobs look like

This has the username field, as used by /etc/crontab.
# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file.
# This file also has a username field, that none of the other crontabs do.

SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root

1 6 * * *  /root/makepwd.sh 
# reboot router every day at 05:30
#30 5 * * * sleep 70 && touch /etc/banner && /sbin/reboot

There is only a script called which changes the password for the guest WIFI every day (experimental).
The jobs for rebooting the system are commented out

I cannot find an error here.

Regards Ralf

5

# missing at the beginning.

1 Like
6

This looks like it is related:

https://bugs.openwrt.org/index.php?do=details&task_id=3116

Esp. this line:

WARNING: CPU: 0 PID: 2046 at backports-4.19.120-1/net/wireless/util.c:1147 0xbf20ed88

It's even the same address. So probably a bug.

So I would try 19.07.2 (like the guy reported this issue did) or a current master build.

7

Like tmomas noticed above (and clarified in the next message), the erroneous line is spelled out pretty clearly in the log. It pays off to read the logs :wink:

8

Oh my goodness.
Sure, you are right!
I was kind of blind.
Just corrected it. Thanks very much.
Ralf

9

So that would be a downgrade, right? Because currently I use 19.07.03
Can I just download https://downloads.openwrt.org/releases/19.07.2/targets/ipq806x/generic/openwrt-19.07.2-ipq806x-generic-tplink_c2600-squashfs-sysupgrade.bin and "update" the system using the "Flash new firmware image" menu?

What excactly is a "current master build." ?
I thought my version 19.07.03 is the current master build. It's not?

Regards Ralf

10

Yes you can. Usally this is not a problem within a series.

Master is the development branch. 19.07 is the current release branch.
For your device this would be the current snapshot build from development branch:

https://downloads.openwrt.org/snapshots/targets/ipq806x/generic/openwrt-ipq806x-generic-tplink_c2600-squashfs-sysupgrade.bin

For reference here you can find the archive:

https://downloads.openwrt.org/

EDIT: Be aware with snapshot builds. They might contain bugs/instabilities also.

11

I think he might mean the current "Development Snapshot Builds" located here: https://downloads.openwrt.org/snapshots/targets/

I also have a C2600 and was experiencing issues with my wfi, especially the 2.4 ghz band. I installed a development build and seems to be working ok for the past couple of weeks. You just have to follow the instructions for the development builds, which means you must be comfortable with putty, or a similar client, to install and update with Luci (if that's what you want). When I reinstalled Luci, then restored my current backup, all my configurations were restored.

Beware though, results may differ because these are called development builds for a reason...

12

Ok.
Thanks for the hints.
I guess, I will give a try to the 19.07.02 in the first place, and if there are still issues I will try the current snapshot.

edit: Flashing worked.
After reboot: Same effect as after update to 19.07.03: 5GHz Radio is disabled:

image
image1082×347 33.3 KB

I try to reboot now. That worked last time...

No reboot needed It just took some minutes for the 5GHz Radio.
Ok. Let's see how stable the WIFI will be from now on...

I'll let you know.

Regards Ralf

13

Now after 2 weeks:
The issue is not gone but it happens much less frequently then before.

I will observe this a while longer and maybe I will give the Development Snapshot a try.
But first I will be in vacation the next thre weeks.

Thanks to all.

Ralf

14

here an update after some months.#
Version 19.07.02 still had those issues at least once a day; so I tried
19.07.4 r11208-ce6496d796
This version is much worse then 19.07.02.
I very often have drops in Wifi, oder suddenly the connection is getting very slow.

Are there any ideas what I could try to change?
Does a system-log help?

15

You could try beta ath10k-ct firmware, available on the CandelaTech website. I know 19.07.5 is going to come sometime soon, maybe that might help.

16

I have three of these runnig as APs, all on 19.07.3, all stable.
One is coming up to 22 days soon, the other two 29 days.

17

Hi there!

I have the same device, with the same issue.. did you manage to fix it?

Tks

18

07.3 works without any issues for me - 235 days uptime, and counting.

the other two are stable on 07.6, after scaling_governor was set to performance.
84 and 54 days uptime.

19

Tks!!! I just updated to 19.07.7 but the performance was horrible.. I'll try this scaling_governor seeting to see if it helps.. Any other suggestions for a better wifi performance?

Tks.

20

I gave up.
I have 19.07.5 r11257-5090152ae3 and still constantly drops.
BR
Ralf