compare the failed case and passed case , it seems the clue is 2nd kernel trigging wlp2s0: deauthenticated from 3c:ce:73:48:04:60
# from journalctl.log: 八 16 13:13:38 u-XPS-13-9380 kernel: wlp2s0: deauthenticated from 3c:ce:73:48:0e:40 (Reason: 1=UNSPECIFIED) 八 16 13:13:39 u-XPS-13-9380 wpa_supplicant[11018]: wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=BEACON_HINT type=UNKNOWN 八 16 13:13:43 u-XPS-13-9380 wpa_supplicant[11018]: wlp2s0: SME: Trying to authenticate with 3c:ce:73:48:04:60 (SSID='Canonical-2.4GHz-g' freq=2412 MHz) 八 16 13:13:43 u-XPS-13-9380 kernel: wlp2s0: associated 八 16 13:13:43 u-XPS-13-9380 kernel: wlp2s0: deauthenticated from 3c:ce:73:48:04:60 (Reason: 2=PREV_AUTH_NOT_VALID) 八 16 13:13:43 u-XPS-13-9380 wpa_supplicant[11018]: wlp2s0: CTRL-EVENT-DISCONNECTED bssid=3c:ce:73:48:04:60 reason=2 八 16 13:13:43 u-XPS-13-9380 wpa_supplicant[11018]: wlp2s0: WPA: 4-Way Handshake failed - pre-shared key may be incorrect 八 16 13:13:43 u-XPS-13-9380 wpa_supplicant[11018]: wlp2s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="Canonical-2.4GHz-g" auth_failures=1 duration=10 reason=WRONG_KEY # compare to the latest successful rekey in journalctl.log: 八 14 11:07:33 u-XPS-13-9380 kernel: wlp2s0: deauthenticated from a4:56:30:cc:0f:30 (Reason: 2=PREV_AUTH_NOT_VALID) 八 14 11:07:33 u-XPS-13-9380 wpa_supplicant[907]: wlp2s0: SME: Trying to authenticate with 3c:ce:73:48:0e:40 (SSID='Canonical-2.4GHz-g' freq=2437 MHz) 八 14 11:07:33 u-XPS-13-9380 kernel: wlp2s0: associated 八 14 11:07:33 u-XPS-13-9380 NetworkManager[906]: <info> [1565752053.7303] device (wlp2s0): supplicant interface state: associating -> 4-way handshake ** Attachment added: "journalctl.log" https://bugs.launchpad.net/oem-priority/+bug/1840416/+attachment/5282829/+files/journalctl.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840416 Title: 2.4g wifi connection failed randomly during wpa re-key To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1840416/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
