TP-Link Archer c2600 802.11r 18.06.4

Dear OpenWRT community,

Not sure if I have set up my two AP's correctly since a few days, but one of them was frozen after 2 days (i.e. not responding, LuCi not working, no wifi). Not sure if it will remain a single event or it will happen again, but maybe you already had this experience (linked to my config or my router?).

My config - maybe I made an error somewhere ?

  • both Archer c2600 v1.1 (although boxes were slightly different), OpenWRT 18.06.4
  • both set as dump AP's acc. to documentation ("disabled IPv6) and in addition identical on both the following settings:
  • switch: tagged VLAN1 & 3 on LAN port 1, LAN ports 2 to 4 as untagged VLAN1 (ie LAN)
  • wifi (identical on both routers except for channels... to minimize interference) with 3 different SSID's
    • VLAN1: 5 GHz, VHT80, channel 36, 100mW, country CH, legacy 0, KRACK 1, WPA2-CCMP, 802.11r 1 with PKM checked, mobility domain unique and nasid left blank
    • VLAN1: 2.4 GHz, HT20, channel 6, 100mW, country CH, legacy 0, KRACK 1, WPA2-CCMP, 802.11r 1 with PKM checked, mobility domain another unique and nasid left blank
    • VLAN3: 2.4 GHz, country CH, legacy 0, KRACK 1, WPA2-CCMP, 802.11r 1 with PKM checked, mobility domain another unique and nasid left blank
      -> I realized the MAC address is identical for the two 2.4 GHz wifi's -> will that make trouble for the fast roaming ?

Syslog, I found the following lines containing "err"

Sun Aug  4 13:07:02 2019 kern.err kernel: [    0.040395] msm_bus_fabric_init_driver
Sun Aug  4 13:07:02 2019 kern.err kernel: [    2.260429] Calibration not found.
Sun Aug  4 13:07:02 2019 kern.warn kernel: [   12.588234] ath10k_pci 0000:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/firmware-6.bin failed with error -2
Sun Aug  4 13:07:02 2019 kern.warn kernel: [   12.588276] ath10k_pci 0000:01:00.0: Falling back to user helper
Sun Aug  4 13:07:02 2019 kern.err kernel: [   12.624534] firmware ath10k!QCA99X0!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
Sun Aug  4 13:07:02 2019 kern.warn kernel: [   14.882764] ath10k_pci 0001:01:00.0: Direct firmware load for ath10k/QCA99X0/hw2.0/firmware-6.bin failed with error -2
Sun Aug  4 13:07:02 2019 kern.warn kernel: [   14.882806] ath10k_pci 0001:01:00.0: Falling back to user helper
Sun Aug  4 13:07:02 2019 kern.err kernel: [   15.366932] firmware ath10k!QCA99X0!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
Sun Aug  4 13:07:06 2019 daemon.err hostapd: Configuration file: /var/run/hostapd-phy1.conf
Sun Aug  4 13:07:06 2019 daemon.err hostapd: Configuration file: /var/run/hostapd-phy0.conf
Mon Aug  5 08:20:08 2019 daemon.err hostapd: Using interface wlan1 with hwaddr xxxxx and ssid "F1"
Mon Aug  5 08:20:09 2019 daemon.err hostapd: Using interface wlan0 with hwaddr xxxxx and ssid "F5"
Mon Aug  5 08:20:09 2019 daemon.err hostapd: Using interface wlan1-1 with hwaddr xxxxx and ssid "F2"
Mon Aug  5 16:12:46 2019 daemon.err hostapd: nl80211: NL80211_ATTR_STA_VLAN (addr=xxxxxx ifname=wlan1 vlan_id=0) failed: -2 (No such file or directory)

Many thanks ! and

cheers Blinton

Please try snapshots (keep in mind that snapshots don't have a webinterface/ luci preinstalled), post 18.06.x OpenWrt has switched to ath10k-ct instead of ath10k - and especially the QCA988x -ct firmware images have seen a lot of work.

Hi slh,

Thanks a lot !
Just installed today's snapshot (06-Aug-2019) on both c2600, plus
nano, wpad and luci-ssl-openssl.

syslog for both c2600

Tue Aug  6 17:11:13 2019 kern.info kernel: [   13.904653] ath10k_pci 0000:01:00.0: firmware ver 10.4b-ct-9980-fW-012-e8020273 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 5db35e61

Tue Aug  6 17:23:26 2019 kern.info kernel: [   14.140181] ath10k_pci 0000:01:00.0: firmware ver 10.4b-ct-9980-fW-012-e8020273 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 5db35e61

-> Indeed higher wifi speed on both radios. :slight_smile:
-> Fast wifi roaming works on both radios. :slight_smile:
-> I'll happily report on wifi stability in the next few days !

cheers Blinton

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