I experiencing wifi connection lost since distribution upgrade from Stretch to Buster
I'm running it on a raspberrypi 3
The wifi connection is dropping after some time (minutes, hours, days)
After reboot the conection is available
I manage to restore the connection with this command:
below the logs from dhcpcd service. The connection is back when I manually rebind wlan0sudo dhcpcd -n wlan0
I did not find anything else relevant
Does anyone have any clue of what is happening ?
May 20 12:26:17 minirasp systemd[1]: Starting dhcpcd on all interfaces...
May 20 12:26:17 minirasp dhcpcd[353]: dev: loaded udev
May 20 12:26:18 minirasp dhcpcd[353]: forked to background, child pid 413
May 20 12:26:19 minirasp dhcpcd-run-hooks[440]: wlan0: starting wpa_supplicant
May 20 12:26:19 minirasp systemd[1]: Started dhcpcd on all interfaces.
May 20 12:26:20 minirasp dhcpcd[413]: wlan0: connected to Access Point `'
May 20 12:26:20 minirasp dhcpcd[413]: eth0: waiting for carrier
May 20 12:26:20 minirasp dhcpcd[413]: wlan0: waiting for carrier
May 20 12:26:21 minirasp dhcpcd[413]: wlan0: carrier acquired
May 20 12:26:21 minirasp dhcpcd[413]: wlan0: connected to Access Point `$SSID'
May 20 12:26:21 minirasp dhcpcd[413]: DUID 00:01:00:01:27:d8:02:ce:b8:27:eb:e1:45:7e
May 20 12:26:21 minirasp dhcpcd[413]: wlan0: IAID eb:e1:45:7e
May 20 12:26:21 minirasp dhcpcd[413]: wlan0: adding address fe80::d1d8:8ce9:7d45:6b42
May 20 12:26:21 minirasp dhcpcd[413]: wlan0: soliciting an IPv6 router
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: rebinding lease of 192.168.1.21
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: probing address 192.168.1.21/24
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: Router Advertisement from fe80:78ff:fe4e:4d6e
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: adding address 2a01:cb19:68:ba00:9b2c:b4c79448/64
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: adding route to 2a01:cb19:68:ba00::/64
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: requesting DHCPv6 information
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: fe80:78ff:fe4e:4d6e is reachable again
May 20 12:26:22 minirasp dhcpcd[413]: wlan0: adding default route via fe80:78ff:fe4e:4d6e
May 20 12:26:27 minirasp dhcpcd[413]: wlan0: leased 192.168.1.21 for 86400 seconds
May 20 12:26:27 minirasp dhcpcd[413]: wlan0: adding route to 192.168.1.0/24
May 20 12:26:27 minirasp dhcpcd[413]: wlan0: adding default route via 192.168.1.1
May 20 12:26:28 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k wlan0
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: removing interface
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: deleting address 2a01:cb19:68:ba00:9b2c:b4c79448/64
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: deleting route to 2a01:cb19:68:ba00::/64
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: deleting default route via fe80:78ff:fe4e:4d6e
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: deleting address fe80::d1d8:8ce9:7d45:6b42
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: releasing lease of 192.168.1.21
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: dhcp_sendudp: Cannot assign requested address
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: deleting route to 192.168.1.0/24
May 20 12:26:28 minirasp dhcpcd[413]: wlan0: deleting default route via 192.168.1.1
May 20 12:26:30 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k eth0
May 20 12:26:30 minirasp dhcpcd[413]: eth0: removing interface
May 20 12:26:31 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k wlan0
May 20 12:27:17 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k wlan0
May 20 12:27:18 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k eth0
May 20 12:27:23 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k wlan0
May 20 12:27:24 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k eth0
May 20 12:27:25 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k wlan0
...
...
...
May 20 16:32:41 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k wlan0
May 20 16:32:42 minirasp dhcpcd[413]: control command: /sbin/dhcpcd -k eth0
May 20 16:35:07 minirasp dhcpcd[413]: control command: dhcpcd -n wlan0
May 20 16:35:08 minirasp dhcpcd-run-hooks[22215]: wlan0: starting wpa_supplicant
May 20 16:35:08 minirasp dhcpcd[413]: wlan0: connected to Access Point `$SSID'
May 20 16:35:09 minirasp dhcpcd[413]: wlan0: carrier acquired
May 20 16:35:09 minirasp dhcpcd[413]: wlan0: IAID eb:e1:45:7e
May 20 16:35:09 minirasp dhcpcd[413]: wlan0: adding address fe80::d1d8:8ce9:7d45:6b42
May 20 16:35:09 minirasp dhcpcd[413]: wlan0: soliciting a DHCP lease
May 20 16:35:10 minirasp dhcpcd[413]: wlan0: soliciting an IPv6 router
May 20 16:35:10 minirasp dhcpcd[413]: wlan0: offered 192.168.1.21 from 192.168.1.1
May 20 16:35:10 minirasp dhcpcd[413]: wlan0: probing address 192.168.1.21/24
May 20 16:35:15 minirasp dhcpcd[413]: wlan0: leased 192.168.1.21 for 86400 seconds
May 20 16:35:15 minirasp dhcpcd[413]: wlan0: adding route to 192.168.1.0/24
May 20 16:35:15 minirasp dhcpcd[413]: wlan0: adding default route via 192.168.1.1
May 20 16:36:57 minirasp dhcpcd[413]: wlan0: Router Advertisement from fe80:78ff:fe4e:4d6e
May 20 16:36:57 minirasp dhcpcd[413]: wlan0: adding address 2a01:cb19:68:ba00:9b2c:b4c79448/64
May 20 16:36:57 minirasp dhcpcd[413]: wlan0: adding route to 2a01:cb19:68:ba00::/64
May 20 16:36:57 minirasp dhcpcd[413]: wlan0: requesting DHCPv6 information
May 20 16:36:57 minirasp dhcpcd[413]: wlan0: fe80:78ff:fe4e:4d6e is reachable again
May 20 16:36:57 minirasp dhcpcd[413]: wlan0: adding default route via fe80:78ff:fe4e:4d6e
May 20 16:37:08 minirasp dhcpcd[413]: wlan0: fe80:78ff:fe4e:4d6e is reachable again
May 20 16:37:08 minirasp dhcpcd[413]: wlan0: fe80:78ff:fe4e:4d6e is reachable again