Public bug reported: There are reproduce-able WiFi aborts with 20.04.1 LTS since update to kernel 5.4.0-56.
Behaviour: nm-applet shows a window to enter the WLAN key that is pre- filled. Hitting the "Connect" button reconnects the WiFi network for a small period. The error occurs sometimes very often (e.g. 10 times/minute) or seldom (only one per day). You can see it in /var/log/syslog at the entry >>> wpa_supplicant[xxx]: l2_packet_send - sendto: No buffer space available As a result 4-Way-Handshake fails and after disconnection the new (old) key is requestet. >>> wpa_supplicant[xxx]: wlp3s0: WPA: 4-Way Handshake failed - pre-shared key >>> may be incorrect >>> NetworkManager[xxx]: <info> [xxx] device (wlp3s0): Activation: (wifi) >>> disconnected during association, asking for new key There are a lot of people having this problem (see discussion in german moderated forum: >>> https://forum.ubuntuusers.de/topic/funknetz-schluessel-werden-staendig-abgefragt See also BUG #1908823 and question #694566 >>> https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1908823 >>> https://answers.launchpad.net/ubuntu/+question/694566 ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1909494 Title: wpa_supplicant and iwlwifi failing with "No buffer space available" since "kernel 5.4.0-56" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1909494/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
