Hi to all.
Something strange happens on my router Archer C50 v4.
Without reasons (in appearance) sometimes my 2.4GHz stop working. No probs with my 5Ghz network.
I can connect to it but internet connection doesn't work...dhcp give me address and all seems going fine. But when I try to ping my router (which is my gateway, verified by ipconfig) it doesn't give me an answer (timeout).
Where should I search first for trying to resolve this issue ?
Thx to all !
Do you see anything weird in the logs?
logread and dmesg
Tue May 14 13:49:13 2019 daemon.notice hostapd: wlan1: AP-STA-DISCONNECTED 30:07:XX:XX:XX:XX
Tue May 14 13:49:13 2019 daemon.info hostapd: wlan1: STA 30:07:XX:XX:XX:XX IEEE 802.11: disassociated
Tue May 14 13:49:14 2019 daemon.info hostapd: wlan0: STA 30:07:XX:XX:XX:XX IEEE 802.11: authenticated
Tue May 14 13:49:14 2019 daemon.info hostapd: wlan0: STA 30:07:XX:XX:XX:XX IEEE 802.11: associated (aid 1)
Tue May 14 13:49:14 2019 daemon.notice hostapd: wlan0: AP-STA-CONNECTED 30:07:4d:00:0d:f9
Tue May 14 13:49:14 2019 daemon.info hostapd: wlan0: STA 30:07:XX:XX:XX:XX RADIUS: starting accounting session 3FC5B1C6F3BA081A
Tue May 14 13:49:14 2019 daemon.info hostapd: wlan0: STA 30:07:XX:XX:XX:XX WPA: pairwise key handshake completed (RSN)
Tue May 14 13:49:14 2019 daemon.info hostapd: wlan1: STA 30:07:XX:XX:XX:XX IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Tue May 14 13:49:15 2019 daemon.info dnsmasq-dhcp[1238]: DHCPDISCOVER(br-lan) 30:07:XX:XX:XX:XX
Tue May 14 13:49:15 2019 daemon.info dnsmasq-dhcp[1238]: DHCPOFFER(br-lan) 192.168.1.150 30:07:XX:XX:XX:XX
Tue May 14 13:49:15 2019 daemon.info dnsmasq-dhcp[1238]: DHCPREQUEST(br-lan) 192.168.1.150 30:07:XX:XX:XX:XX
Tue May 14 13:49:15 2019 daemon.info dnsmasq-dhcp[1238]: DHCPACK(br-lan) 192.168.1.150 30:07:XX:XX:XX:XX AlbiChevreS8
[May 2 20:30] mt76x2e 0000:01:00.0: MCU message 31 (seq 2) timed out
[May 2 20:32] mt76x2e 0000:01:00.0: MCU message 31 (seq 4) timed out
[ +2.079961] mt76x2e 0000:01:00.0: MCU message 31 (seq 5) timed out
[ +2.079984] mt76x2e 0000:01:00.0: MCU message 31 (seq 6) timed out
[May 3 15:20] mt76x2e 0000:01:00.0: MCU message 31 (seq 12) timed out
[ +2.079986] mt76x2e 0000:01:00.0: MCU message 31 (seq 13) timed out
[ +2.080019] mt76x2e 0000:01:00.0: MCU message 31 (seq 14) timed out
[ +2.080107] mt76x2e 0000:01:00.0: MCU message 31 (seq 15) timed out
[ +2.079834] mt76x2e 0000:01:00.0: MCU message 31 (seq 1) timed out
[ +2.079981] mt76x2e 0000:01:00.0: MCU message 31 (seq 2) timed out
[ +2.079996] mt76x2e 0000:01:00.0: MCU message 31 (seq 3) timed out
[ +2.080019] mt76x2e 0000:01:00.0: MCU message 31 (seq 4) timed out
[May 3 15:21] mt76x2e 0000:01:00.0: MCU message 31 (seq 5) timed out
[ +2.079988] mt76x2e 0000:01:00.0: MCU message 31 (seq 6) timed out
[ +2.079980] mt76x2e 0000:01:00.0: MCU message 31 (seq 7) timed out
[ +2.079991] mt76x2e 0000:01:00.0: MCU message 31 (seq 8) timed out
[ +2.079991] mt76x2e 0000:01:00.0: MCU message 31 (seq 9) timed out
[May 5 16:01] rt3050-esw 10110000.esw: link changed 0x03
[May 5 17:44] rt3050-esw 10110000.esw: link changed 0x01
[May14 12:20] rt3050-esw 10110000.esw: link changed 0x03
[May14 13:21] device wlan0 left promiscuous mode
[ +0.004932] br-lan: port 3(wlan0) entered disabled state
[ +1.052487] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ +0.010863] br-lan: port 3(wlan0) entered blocking state
[ +0.005678] br-lan: port 3(wlan0) entered disabled state
[ +0.005940] device wlan0 entered promiscuous mode
[ +0.005129] br-lan: port 3(wlan0) entered blocking state
[ +0.005603] br-lan: port 3(wlan0) entered forwarding state
[ +0.169840] br-lan: port 3(wlan0) entered disabled state
[ +19.765641] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ +0.006951] br-lan: port 3(wlan0) entered blocking state
[ +0.005581] br-lan: port 3(wlan0) entered forwarding state
[May14 13:28] rt3050-esw 10110000.esw: link changed 0x00
[ +0.261305] device wlan0 left promiscuous mode
[ +0.004914] br-lan: port 3(wlan0) entered disabled state
[ +1.113875] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ +0.010565] br-lan: port 3(wlan0) entered blocking state
[ +0.005665] br-lan: port 3(wlan0) entered disabled state
[ +0.006053] device wlan0 entered promiscuous mode
[ +0.005151] br-lan: port 3(wlan0) entered blocking state
[ +0.005566] br-lan: port 3(wlan0) entered forwarding state
[ +0.091134] br-lan: port 3(wlan0) entered disabled state
[ +0.656871] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ +0.006906] br-lan: port 3(wlan0) entered blocking state
[ +0.005568] br-lan: port 3(wlan0) entered forwarding state
[ +0.912556] rt3050-esw 10110000.esw: link changed 0x01
[ +0.661625] rt3050-esw 10110000.esw: link changed 0x03
Here when i try to connect to the Wifi. But I don't really understand dmesg here 
EDIT: " MCU message 31" seems to be the issue... Idk
https://github.com/openwrt/mt76/issues/142 or MCU message 31 (seq 14) timed out or https://www.spinics.net/lists/linux-wireless/msg174699.html
Have you tried changing the channel to either: 1, 6 or 11?
Yep already tried...
The problem seems to be the driver another topic here : https://patchwork.kernel.org/patch/10519641/
So I think I need to update the driver mt76x2 in my firmware but idk how to achieve it...
Here is my actual version :
root@OpenWrt:~# opkg list-installed | grep mt76x2
kmod-mt76x2 - 4.14.90+2018-12-28-3598046d-1
kmod-mt76x2-common - 4.14.90+2018-12-28-3598046d-1
EDIT: Seems to perform an update of this driver I need to update the kernel... from 4.14.90 to 4.14.118...