wifi cannot re-connected to upstream wifi

BUG: https://bugs.openwrt.org/index.php?do=details&task_id=3512

first I change password in upstream wifi (ssid=X-WRT_9B84)
and my mt76x8 device lost wifi connection
then I change the password back again
but the mt76x8 cannot re-connect to upstream wifi

the log:

Fri Dec 11 19:22:40 2020 kern.info kernel: [92023.412533] wlan0: deauthenticated from xx:xx:xx:e1:9b:86 (Reason: 3=DEAUTH_LEAVING)
Fri Dec 11 19:22:40 2020 daemon.notice netifd: Network device 'wlan0' link is down
Fri Dec 11 19:22:40 2020 daemon.notice netifd: Interface 'wwan' has link connectivity loss
Fri Dec 11 19:22:40 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-DISCONNECTED bssid=xx:xx:xx:e1:9b:86 reason=3
Fri Dec 11 19:22:40 2020 daemon.notice netifd: wwan (11438): udhcpc: received SIGTERM
Fri Dec 11 19:22:40 2020 daemon.notice netifd: wwan (11438): udhcpc: unicasting a release of 192.168.15.145 to 192.168.15.1
Fri Dec 11 19:22:40 2020 daemon.notice netifd: wwan (11438): udhcpc: sending release
Fri Dec 11 19:22:40 2020 daemon.notice netifd: wwan (11438): udhcpc: entering released state
Fri Dec 11 19:22:40 2020 daemon.notice netifd: wwan (11438): Command failed: Permission denied
Fri Dec 11 19:22:40 2020 daemon.notice netifd: Interface 'wwan' is now down
Fri Dec 11 19:22:40 2020 daemon.debug dnsmasq[11344]: stopped listening on wlan0(#20): 192.168.15.145 port 53
Fri Dec 11 19:22:40 2020 daemon.notice netifd: Interface 'wwan' is disabled
Fri Dec 11 19:22:40 2020 daemon.notice netifd: Interface 'wwan' is enabled
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: reading /tmp/resolv.conf.d/resolv.conf.auto
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using only locally-known addresses for domain test
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using only locally-known addresses for domain onion
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using only locally-known addresses for domain localhost
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using only locally-known addresses for domain local
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using only locally-known addresses for domain invalid
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using only locally-known addresses for domain bind
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using only locally-known addresses for domain lan
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using nameserver fe80::2efd:a1ff:fe03:9d91%eth0.1#53
Fri Dec 11 19:22:40 2020 daemon.info dnsmasq[11344]: using nameserver 192.168.16.1#53
Fri Dec 11 19:22:41 2020 daemon.notice netifd: Network device 'wlan0-1' link is down
Fri Dec 11 19:22:41 2020 daemon.notice netifd: Interface 'lanap' has link connectivity loss
Fri Dec 11 19:22:46 2020 daemon.notice netifd: Network device 'wlan0-1' link is up
Fri Dec 11 19:22:46 2020 daemon.notice netifd: Interface 'lanap' has link connectivity
Fri Dec 11 19:24:25 2020 daemon.notice wpa_supplicant[10521]: wlan0: SME: Trying to authenticate with xx:xx:xx:e1:9b:86 (SSID='X-WRT_9B84' freq=2462 MHz)
Fri Dec 11 19:24:25 2020 daemon.notice wpa_supplicant[10521]: wlan0: SME: Authentication request to the driver failed
Fri Dec 11 19:24:25 2020 kern.info kernel: [92127.874903] wlan0: authenticate with xx:xx:xx:e1:9b:86
Fri Dec 11 19:24:25 2020 daemon.notice netifd: Network device 'wlan0-1' link is down
Fri Dec 11 19:24:25 2020 daemon.notice netifd: Interface 'lanap' has link connectivity loss
Fri Dec 11 19:24:26 2020 daemon.notice wpa_supplicant[10521]: wlan0: SME: Trying to authenticate with xx:xx:xx:e1:9b:86 (SSID='X-WRT_9B84' freq=2462 MHz)
Fri Dec 11 19:24:26 2020 kern.info kernel: [92129.339747] wlan0: authenticate with xx:xx:xx:e1:9b:86
Fri Dec 11 19:24:26 2020 kern.info kernel: [92129.369148] wlan0: send auth to xx:xx:xx:e1:9b:86 (try 1/3)
Fri Dec 11 19:24:26 2020 daemon.notice wpa_supplicant[10521]: wlan0: Trying to associate with xx:xx:xx:e1:9b:86 (SSID='X-WRT_9B84' freq=2462 MHz)
Fri Dec 11 19:24:26 2020 kern.info kernel: [92129.387006] wlan0: authenticated
Fri Dec 11 19:24:26 2020 kern.info kernel: [92129.397573] wlan0: associate with xx:xx:xx:e1:9b:86 (try 1/3)
Fri Dec 11 19:24:26 2020 kern.info kernel: [92129.417213] wlan0: RX AssocResp from xx:xx:xx:e1:9b:86 (capab=0x431 status=0 aid=1)
Fri Dec 11 19:24:26 2020 kern.info kernel: [92129.432615] wlan0: associated
Fri Dec 11 19:24:26 2020 daemon.notice netifd: Network device 'wlan0' link is up
Fri Dec 11 19:24:26 2020 daemon.notice netifd: Interface 'wwan' has link connectivity
Fri Dec 11 19:24:26 2020 daemon.notice netifd: Interface 'wwan' is setting up now
Fri Dec 11 19:24:26 2020 daemon.notice wpa_supplicant[10521]: wlan0: Associated with xx:xx:xx:e1:9b:86
Fri Dec 11 19:24:26 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
Fri Dec 11 19:24:26 2020 daemon.notice netifd: wwan (11770): udhcpc: started, v1.31.1
Fri Dec 11 19:24:26 2020 daemon.notice netifd: wwan (11770): udhcpc: sending discover
Fri Dec 11 19:24:29 2020 daemon.notice netifd: wwan (11770): udhcpc: sending discover
Fri Dec 11 19:24:30 2020 daemon.notice netifd: Network device 'wlan0' link is down
Fri Dec 11 19:24:30 2020 daemon.notice netifd: Interface 'wwan' has link connectivity loss
Fri Dec 11 19:24:30 2020 kern.info kernel: [92133.436716] wlan0: deauthenticated from xx:xx:xx:e1:9b:86 (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
Fri Dec 11 19:24:30 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-DISCONNECTED bssid=xx:xx:xx:e1:9b:86 reason=15
Fri Dec 11 19:24:30 2020 daemon.notice wpa_supplicant[10521]: wlan0: WPA: 4-Way Handshake failed - pre-shared key may be incorrect
Fri Dec 11 19:24:30 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="X-WRT_9B84" auth_failures=1 duration=10 reason=WRONG_KEY
Fri Dec 11 19:24:30 2020 daemon.notice netifd: wwan (11770): udhcpc: received SIGTERM
Fri Dec 11 19:24:30 2020 daemon.notice netifd: wwan (11770): udhcpc: entering released state
Fri Dec 11 19:24:30 2020 daemon.notice netifd: wwan (11770): Command failed: Permission denied
Fri Dec 11 19:24:30 2020 daemon.notice netifd: Interface 'wwan' is now down
Fri Dec 11 19:24:30 2020 daemon.notice netifd: Interface 'wwan' is disabled
Fri Dec 11 19:24:30 2020 daemon.notice netifd: Interface 'wwan' is enabled
Fri Dec 11 19:24:34 2020 daemon.notice netifd: Network device 'wlan0-1' link is up
Fri Dec 11 19:24:34 2020 daemon.notice netifd: Interface 'lanap' has link connectivity
Fri Dec 11 19:24:41 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-SSID-REENABLED id=0 ssid="X-WRT_9B84"
Fri Dec 11 19:24:41 2020 daemon.notice wpa_supplicant[10521]: wlan0: SME: Trying to authenticate with xx:xx:xx:e1:9b:86 (SSID='X-WRT_9B84' freq=2462 MHz)
Fri Dec 11 19:24:41 2020 daemon.notice wpa_supplicant[10521]: wlan0: SME: Authentication request to the driver failed
Fri Dec 11 19:24:41 2020 kern.info kernel: [92144.477289] wlan0: authenticate with xx:xx:xx:e1:9b:86
Fri Dec 11 19:24:41 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="X-WRT_9B84" auth_failures=2 duration=20 reason=CONN_FAILED
Fri Dec 11 19:24:41 2020 daemon.notice netifd: Network device 'wlan0-1' link is down
Fri Dec 11 19:24:41 2020 daemon.notice netifd: Interface 'lanap' has link connectivity loss
Fri Dec 11 19:24:46 2020 daemon.notice netifd: Network device 'wlan0-1' link is up
Fri Dec 11 19:24:46 2020 daemon.notice netifd: Interface 'lanap' has link connectivity
Fri Dec 11 19:25:02 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-SSID-REENABLED id=0 ssid="X-WRT_9B84"
Fri Dec 11 19:25:02 2020 daemon.notice wpa_supplicant[10521]: wlan0: SME: Trying to authenticate with xx:xx:xx:e1:9b:86 (SSID='X-WRT_9B84' freq=2462 MHz)
Fri Dec 11 19:25:02 2020 daemon.notice wpa_supplicant[10521]: wlan0: SME: Authentication request to the driver failed
Fri Dec 11 19:25:02 2020 daemon.notice wpa_supplicant[10521]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="X-WRT_9B84" auth_failures=3 duration=30 reason=CONN_FAILED
Fri Dec 11 19:25:02 2020 kern.info kernel: [92165.400213] wlan0: authenticate with xx:xx:xx:e1:9b:86
Fri Dec 11 19:25:02 2020 daemon.notice netifd: Network device 'wlan0-1' link is down
Fri Dec 11 19:25:02 2020 daemon.notice netifd: Interface 'lanap' has link connectivity loss
Fri Dec 11 19:25:04 2020 daemon.notice netifd: Network device 'wlan0-1' link is up
Fri Dec 11 19:25:04 2020 daemon.notice netifd: Interface 'lanap' has link connectivity

if I do /etc/init.d/network restart
it re-connect ok

Reproduce the password-change and restoration sequence on the mt76x8 device, using the wpa_supplicant and netifd log events in the report as the starting evidence. Compare this with the recovery from /etc/init.d/network restart; done means the upstream Wi-Fi reconnects automatically after the password is restored, without restarting the network service.