Wifi unstable and wan connection drops on MI router 4c, running on OpenWrt 21.02.0-rc2 stable release, system log attached
wifi disconnect
Thu Jun 3 19:55:06 2021 kern.info kernel: [21337.734846] rt3050-esw 10110000.esw: link changed 0x06
after restarting wifi radio
Thu Jun 3 20:00:24 2021 daemon.notice hostapd: Remove interface 'wlan0'
Thu Jun 3 20:00:24 2021 daemon.notice hostapd: wlan0: interface state ENABLED->DISABLED
Thu Jun 3 20:00:24 2021 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 26:0f:41:a2:14:99
Thu Jun 3 20:00:24 2021 daemon.notice hostapd: wlan0: AP-DISABLED
Thu Jun 3 20:00:24 2021 daemon.notice hostapd: wlan0: CTRL-EVENT-TERMINATING
Thu Jun 3 20:00:24 2021 daemon.notice hostapd: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Thu Jun 3 20:00:24 2021 kern.info kernel: [21655.465888] device wlan0 left promiscuous mode
Thu Jun 3 20:00:24 2021 kern.info kernel: [21655.470650] br-lan: port 2(wlan0) entered disabled state
Thu Jun 3 20:00:27 2021 kern.err kernel: [21658.906057] mt76_wmac 10300000.wmac: MCU message 08 (seq 7) timed out
Thu Jun 3 20:00:29 2021 daemon.notice netifd: Network device 'wlan0' link is down
Thu Jun 3 20:00:31 2021 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy wlan0) --> new PHY
Thu Jun 3 20:00:34 2021 kern.err kernel: [21665.817985] mt76_wmac 10300000.wmac: MCU message 08 (seq 8) timed out
Thu Jun 3 20:00:36 2021 kern.info kernel: [21667.884073] br-lan: port 2(wlan0) entered blocking state
Thu Jun 3 20:00:36 2021 kern.info kernel: [21667.889549] br-lan: port 2(wlan0) entered disabled state
Thu Jun 3 20:00:36 2021 kern.info kernel: [21667.895378] device wlan0 entered promiscuous mode
Thu Jun 3 20:00:36 2021 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
Thu Jun 3 20:00:36 2021 daemon.notice hostapd: wlan0: interface state COUNTRY_UPDATE->HT_SCAN
Thu Jun 3 20:00:39 2021 kern.err kernel: [21670.937919] mt76_wmac 10300000.wmac: MCU message 08 (seq 9) timed out
Thu Jun 3 20:00:44 2021 kern.err kernel: [21676.057867] mt76_wmac 10300000.wmac: MCU message 08 (seq 10) timed out
Thu Jun 3 20:00:49 2021 kern.err kernel: [21681.177788] mt76_wmac 10300000.wmac: MCU message 08 (seq 11) timed out
Thu Jun 3 20:00:55 2021 kern.err kernel: [21686.297726] mt76_wmac 10300000.wmac: MCU message 08 (seq 12) timed out
Thu Jun 3 20:01:00 2021 kern.err kernel: [21691.417664] mt76_wmac 10300000.wmac: MCU message 08 (seq 13) timed out
Thu Jun 3 20:01:05 2021 kern.err kernel: [21696.537602] mt76_wmac 10300000.wmac: MCU message 08 (seq 14) timed out
Thu Jun 3 20:01:10 2021 kern.err kernel: [21701.657538] mt76_wmac 10300000.wmac: MCU message 08 (seq 15) timed out
Thu Jun 3 20:01:15 2021 kern.err kernel: [21706.777479] mt76_wmac 10300000.wmac: MCU message 08 (seq 1) timed out
Thu Jun 3 20:01:20 2021 kern.err kernel: [21711.897424] mt76_wmac 10300000.wmac: MCU message 08 (seq 2) timed out
Thu Jun 3 20:01:25 2021 kern.err kernel: [21717.017355] mt76_wmac 10300000.wmac: MCU message 08 (seq 3) timed out
Thu Jun 3 20:01:30 2021 kern.err kernel: [21722.137291] mt76_wmac 10300000.wmac: MCU message 08 (seq 4) timed out
Thu Jun 3 20:01:36 2021 kern.err kernel: [21727.257229] mt76_wmac 10300000.wmac: MCU message 08 (seq 5) timed out
Thu Jun 3 20:01:41 2021 kern.err kernel: [21732.377165] mt76_wmac 10300000.wmac: MCU message 08 (seq 6) timed out
Thu Jun 3 20:01:46 2021 kern.err kernel: [21737.497107] mt76_wmac 10300000.wmac: MCU message 08 (seq 7) timed out
Thu Jun 3 20:01:51 2021 kern.err kernel: [21742.873039] mt76_wmac 10300000.wmac: MCU message 08 (seq 8) timed out
Thu Jun 3 20:01:53 2021 kern.info kernel: [21744.922760] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Thu Jun 3 20:01:53 2021 kern.info kernel: [21744.929532] br-lan: port 2(wlan0) entered blocking state
Thu Jun 3 20:01:53 2021 kern.info kernel: [21744.934979] br-lan: port 2(wlan0) entered forwarding state
Thu Jun 3 20:01:53 2021 daemon.notice netifd: Network device 'wlan0' link is up
Thu Jun 3 20:01:53 2021 daemon.notice hostapd: wlan0: interface state HT_SCAN->ENABLED
Thu Jun 3 20:01:53 2021 daemon.notice hostapd: wlan0: AP-ENABLED
wan connection drop
Thu Jun 3 20:08:38 2021 kern.err kernel: [22150.164143] mt76_wmac 10300000.wmac: MCU message 08 (seq 9) timed out
Thu Jun 3 20:08:43 2021 kern.err kernel: [22154.516085] mt76_wmac 10300000.wmac: MCU message 08 (seq 10) timed out
Thu Jun 3 20:08:49 2021 kern.err kernel: [22160.660009] mt76_wmac 10300000.wmac: MCU message 08 (seq 11) timed out
Thu Jun 3 20:08:54 2021 kern.err kernel: [22165.779948] mt76_wmac 10300000.wmac: MCU message 08 (seq 12) timed out
Thu Jun 3 20:08:59 2021 kern.err kernel: [22170.899888] mt76_wmac 10300000.wmac: MCU message 08 (seq 13) timed out
Thu Jun 3 20:09:04 2021 kern.err kernel: [22176.019826] mt76_wmac 10300000.wmac: MCU message 08 (seq 14) timed out
Thu Jun 3 20:09:09 2021 kern.err kernel: [22181.139765] mt76_wmac 10300000.wmac: MCU message 08 (seq 15) timed out
Thu Jun 3 20:09:15 2021 kern.err kernel: [22186.259707] mt76_wmac 10300000.wmac: MCU message 08 (seq 1) timed out
Thu Jun 3 20:09:20 2021 kern.err kernel: [22191.379642] mt76_wmac 10300000.wmac: MCU message 08 (seq 2) timed out
Thu Jun 3 20:09:25 2021 kern.err kernel: [22196.499585] mt76_wmac 10300000.wmac: MCU message 08 (seq 3) timed out
Thu Jun 3 20:09:30 2021 kern.err kernel: [22201.619520] mt76_wmac 10300000.wmac: MCU message 08 (seq 4) timed out
Thu Jun 3 20:09:35 2021 kern.err kernel: [22206.739463] mt76_wmac 10300000.wmac: MCU message 08 (seq 5) timed out
Thu Jun 3 20:09:40 2021 kern.err kernel: [22211.859397] mt76_wmac 10300000.wmac: MCU message 08 (seq 6) timed out
Thu Jun 3 20:09:45 2021 kern.err kernel: [22216.979335] mt76_wmac 10300000.wmac: MCU message 08 (seq 7) timed out
Thu Jun 3 20:09:50 2021 kern.err kernel: [22222.099276] mt76_wmac 10300000.wmac: MCU message 08 (seq 8) timed out
Thu Jun 3 20:09:55 2021 kern.err kernel: [22227.219215] mt76_wmac 10300000.wmac: MCU message 08 (seq 9) timed out
Thu Jun 3 20:10:01 2021 kern.err kernel: [22232.339153] mt76_wmac 10300000.wmac: MCU message 08 (seq 10) timed out
Thu Jun 3 20:10:06 2021 kern.err kernel: [22237.459096] mt76_wmac 10300000.wmac: MCU message 08 (seq 11) timed out
Thu Jun 3 20:10:11 2021 kern.err kernel: [22242.579030] mt76_wmac 10300000.wmac: MCU message 08 (seq 12) timed out
Thu Jun 3 20:10:16 2021 kern.err kernel: [22247.698970] mt76_wmac 10300000.wmac: MCU message 08 (seq 13) timed out
Thu Jun 3 20:10:21 2021 kern.err kernel: [22252.818917] mt76_wmac 10300000.wmac: MCU message 08 (seq 14) timed out
Thu Jun 3 20:10:26 2021 kern.err kernel: [22257.938869] mt76_wmac 10300000.wmac: MCU message 08 (seq 15) timed out
Thu Jun 3 20:10:31 2021 kern.err kernel: [22263.058788] mt76_wmac 10300000.wmac: MCU message 08 (seq 1) timed out
Thu Jun 3 20:10:36 2021 kern.err kernel: [22268.178725] mt76_wmac 10300000.wmac: MCU message 08 (seq 2) timed out
Thu Jun 3 20:10:42 2021 kern.err kernel: [22273.298665] mt76_wmac 10300000.wmac: MCU message 08 (seq 3) timed out
Thu Jun 3 20:10:47 2021 kern.err kernel: [22278.418620] mt76_wmac 10300000.wmac: MCU message 08 (seq 4) timed out
Thu Jun 3 20:10:52 2021 kern.err kernel: [22283.538544] mt76_wmac 10300000.wmac: MCU message 08 (seq 5) timed out
Thu Jun 3 20:10:57 2021 kern.err kernel: [22288.658776] mt76_wmac 10300000.wmac: MCU message 08 (seq 6) timed out
Thu Jun 3 20:28:51 2021 kern.info kernel: [23362.924721] rt3050-esw 10110000.esw: link changed 0x04
Wifi gets restored after restarting the router.
Any solution will be helpful
thank you