Did this fix your WiFi op?
Just had my c7 delivered - WiFi is seemingly worse than my Virgin media hub 3 which is disappointing. Any ways to make. better?
I routinely have 100+ Mbs on my 5 GHZ. Sometimes 200+, depending upon time of day. My ISP states 200+ Mbs, but that's not guaranteed given the user base. I am on a cable (coax) ISP. 2.4 GHZ is less than 100 Mbs, usually ~60 MBS, per SpeedTest.
I haven't had any problems with drops or restarting the wifi. There are 5 of us in the house, streaming all sorts of Netflix, Hulu, Playstation, etc and everything is working fine.
How is your setup configured?
I've now had zero issues for 2-3 days.
I have done 3 things:
- Disabled 5GHz. Did not fix it.
- Installed kmod-ath10k-ct-smallbuffers. Did not fix it.
- Disabled WAN6 (IPv6). This seems to have been what fixed it! I realize disabling it is not exactly a solution, and the real solution would have been to get it running properly without issue, but this certainly seems to have been the cause. You can see in my log, I have this quite frequently: "Failed to send DHCPV6 message to ff02::1:2 (Permission denied)"
Glad to see! How is your performance doing speed wise?
Everything works and feels fast on all devices, but I'm probably not going to do any actual benchmarks 
The only thing I've found to have an issue with is playing certain videos from plex to my iphone XR at native resolution. Video in question is 1920x1080 50fps, total bit rate of 6248kbps, and file sizes are often over 5GB. Have to reduce quality in Plex app to get it to work. I should test this on my Roku wireless to see if the issue persists there, or maybe it's just a limitation of plex server or iphone, rather than anything router related.
I have an Netgate SG-1100 Connected to my cable modem, from there I have 2 tp-link c2600’s as access points. I also have a couple of Zyxel PLA6456 Powerline adapters since I have an older house not wired for Ethernet. They work very well and I get 400-700 MB’s from point to point.
Could you share more info on what you did? Did you follow the steps by @farr4744, or something else? (Go to "Network", "Interfaces", then "Edit" your lan interface. Under the "DHCP server" tab, click the "IPV6" tab and disable for top 3 items.)
Just went to Network > Interfaces and hit Delete on WAN6
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Well, I spoke to soon. Had another 2.4GHz drop last night, and again today just now. Wired not impacted. Anything in this log stand out?
Mon Sep 14 09:36:26 2020 kern.warn kernel: [34143.878241] conntrack: generic helper won't handle protocol 47. Please consider loading the specific helper module.
Mon Sep 14 09:43:01 2020 daemon.info dnsmasq-dhcp[1752]: DHCPINFORM(br-lan) 192.168.1.229 dc:fb:48:34:cf:60
Mon Sep 14 09:43:01 2020 daemon.info dnsmasq-dhcp[1752]: DHCPACK(br-lan) 192.168.1.229 dc:fb:48:34:cf:60 USPOL2022
Mon Sep 14 09:53:57 2020 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED 54:2b:8d:94:0a:22
Mon Sep 14 09:53:57 2020 daemon.info hostapd: wlan1: STA 54:2b:8d:94:0a:22 IEEE 802.11: authenticated
Mon Sep 14 09:53:57 2020 daemon.info hostapd: wlan1: STA 54:2b:8d:94:0a:22 IEEE 802.11: associated (aid 5)
Mon Sep 14 09:53:57 2020 daemon.notice hostapd: wlan1: AP-STA-CONNECTED 54:2b:8d:94:0a:22
Mon Sep 14 09:53:57 2020 daemon.info hostapd: wlan1: STA 54:2b:8d:94:0a:22 WPA: pairwise key handshake completed (RSN)
Mon Sep 14 09:53:58 2020 daemon.info dnsmasq-dhcp[1752]: DHCPREQUEST(br-lan) 192.168.1.130 54:2b:8d:94:0a:22
Mon Sep 14 09:53:58 2020 daemon.info dnsmasq-dhcp[1752]: DHCPACK(br-lan) 192.168.1.130 54:2b:8d:94:0a:22 PJs-iPhone
Mon Sep 14 09:54:53 2020 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED dc:fb:48:34:cf:60
Mon Sep 14 09:54:53 2020 daemon.info hostapd: wlan1: STA dc:fb:48:34:cf:60 IEEE 802.11: authenticated
Mon Sep 14 09:54:53 2020 daemon.info hostapd: wlan1: STA dc:fb:48:34:cf:60 IEEE 802.11: associated (aid 13)
Mon Sep 14 09:54:53 2020 daemon.notice hostapd: wlan1: AP-STA-CONNECTED dc:fb:48:34:cf:60
Mon Sep 14 09:54:53 2020 daemon.info hostapd: wlan1: STA dc:fb:48:34:cf:60 WPA: pairwise key handshake completed (RSN)
Mon Sep 14 09:54:53 2020 daemon.info dnsmasq-dhcp[1752]: DHCPREQUEST(br-lan) 192.168.1.229 dc:fb:48:34:cf:60
Mon Sep 14 09:54:53 2020 daemon.warn dnsmasq-dhcp[1752]: Ignoring domain lonzagroup.net for DHCP host name USPOL2022
Mon Sep 14 09:54:53 2020 daemon.info dnsmasq-dhcp[1752]: DHCPACK(br-lan) 192.168.1.229 dc:fb:48:34:cf:60 USPOL2022
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Is this from my kernel log related?
[ 31.223496] br-lan: port 2(wlan1) entered blocking state
Yeah, I deleted WAN6 and the problem just continued, although I notice that there still seems to be IPV6 DHCP leases being given out.
I looked at memory usage and it was only at 33%, so the theory I saw about 5G causing a memory leak don't seem to apply here.
I looked at my kernel logs before the hangup and I see:
[ 12.347749] PPP generic driver version 2.4.2
[ 12.364146] NET: Registered protocol family 24
[ 12.416263] ath10k 4.19 driver, optimized for CT firmware, probing pci device: 0x3c.
[ 12.444246] PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
[ 12.450271] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
[ 12.502505] random: crng init done
[ 12.763668] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/fwcfg-pci-0000:00:00.0.txt failed with error -2
[ 12.774578] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 13.058435] firmware ath10k!fwcfg-pci-0000:00:00.0.txt: firmware_loading_store: map pages failed
[ 13.067815] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:00:00.0.bin failed with error -2
[ 13.078904] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 13.442694] firmware ath10k!pre-cal-pci-0000:00:00.0.bin: firmware_loading_store: map pages failed
[ 13.459417] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/ct-firmware-5.bin failed with error -2
[ 13.470790] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 13.838518] firmware ath10k!QCA988X!hw2.0!ct-firmware-5.bin: firmware_loading_store: map pages failed
[ 13.848336] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/ct-firmware-2.bin failed with error -2
[ 13.859686] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 14.079923] firmware ath10k!QCA988X!hw2.0!ct-firmware-2.bin: firmware_loading_store: map pages failed
[ 14.089745] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-6.bin failed with error -2
[ 14.100826] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 14.278271] firmware ath10k!QCA988X!hw2.0!firmware-6.bin: firmware_loading_store: map pages failed
[ 14.287827] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-5.bin failed with error -2
[ 14.298914] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 14.481966] firmware ath10k!QCA988X!hw2.0!firmware-5.bin: firmware_loading_store: map pages failed
[ 14.491519] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-4.bin failed with error -2
[ 14.502602] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 14.680375] firmware ath10k!QCA988X!hw2.0!firmware-4.bin: firmware_loading_store: map pages failed
[ 14.689929] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/firmware-3.bin failed with error -2
[ 14.701011] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 14.878387] firmware ath10k!QCA988X!hw2.0!firmware-3.bin: firmware_loading_store: map pages failed
[ 15.086486] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000
[ 15.096060] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 0
[ 15.108466] ath10k_pci 0000:00:00.0: firmware ver 10.1-ct-8x-__fW-022-b0e1b7cd api 2 features wmi-10.x,has-wmi-mgmt-tx,mfp,txstatus-noack,wmi-10.x-CT,ratemask-CT,txrate-CT,get-temp-CT,tx-rc-CT,cust-stats-CT,retry-gt2-CT,txrate2-CT,beacon-cb-CT,wmi-block-ack-CT crc32 1e527180
[ 15.161330] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA988X/hw2.0/board-2.bin failed with error -2
[ 15.172138] ath10k_pci 0000:00:00.0: Falling back to user helper
[ 15.263633] firmware ath10k!QCA988X!hw2.0!board-2.bin: firmware_loading_store: map pages failed
[ 15.273033] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 bebc7c08
[ 16.223507] ath10k_pci 0000:00:00.0: 10.1 wmi init: vdevs: 16 peers: 127 tid: 256
Firmware Version
OpenWrt 19.07.3 r11063-85e04e9f46 / LuCI openwrt-19.07 branch git-20.136.49537-fb2f363
Kernel Version
4.14.180
Any ideas what I could try?
Did you disable IPV6 on your lan network, per my previous post?
@moogleslam I've out some help here ( Ath10k_pci 0000:01:00.0: SWBA overrun on vdev 0, skipped old beacon ) and here ( State of Archer C7 v2 in mid-2020 ) .
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@Catfriend1 First of all, awesome username. Second, if you can fix anyone's Archer C7 V2 wifi drops, I applaud you. I also really appreciate you responding.
However, I'm a total idiot when it comes to this stuff, so I'd need a lot of handholding to help me understand what to do. I downloaded your openwrt-19.07.4-mesh.zip file. I see it has two V2 related .bin files in it so extracted those. Is it as simple as flashing one (which?) in LuCi > System > Backup / Flash Firmware > Flash Image...?
I see you talking about something needing 30GB.... was that just you when compiling, or do I need 30GB for something?
Then your other link talks about scripts and needing a couple of packages. I'm lost.
Sorry for my lack of knowledge!
It's okay if you flash the -sysupgrade.bin via web UI. The 30gb must be free if you want to compile yourself but that isn't necessary if using my files.
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Okay, flashed successfully; I did keep settings, not sure if I should have? Maybe a clean slate would have been better? Thank you!
Should be okay . If wifi is not starting, grab a fresh /etc/config/wireless . This can happen if you've used a radius config or mesh config before but in most cases it's okay to keep settings.
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To my knowledge, I haven't used either, but 
As for the mesh part, not sure if relevant, but I don't have a mesh setup; Router is only AP.
Under Status > Memory, the Used line seems a lot lower than normal (34 MB at the moment); this because of reboot after flashing, or maybe your firmware using less memory? Maybe didn't pay enough attention before, but curious, and cautiously optimistic. Think this is my last shot at this. Have Ubiquiti Dream Machine & their MeshPoint in my Amazon cart, just in case....
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I can tell you my experience
My wifi is unstable same as yours, some times it die, so i don't use routing features on my archer c7
It is in AP Mode, so it was doing only layer 2 networking
I will try to post a log when it was happen.
Because packet loss and died wifi are annoying
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