By installing an OLDER mainline kernel 5.3.18-050318-generic x86_64, the behaviour has reverted to what I had before Ubuntu 20.04, meaning: if the router switches the canal for the 5 Ghz band, connection is lost and then a new connection is set on the 2.4 Ghz band.
Interestingly, what can be seen in attachments in message #4 and #5 is happening too but is not reproduced endlessly, just a few attempts. ** Attachment added: "syslog (older kernel)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881214/+attachment/5382011/+files/syslog%20%28older%20kernel%29 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1881214 Title: Intel Wireless 8260 [8086:24f3] Subsystem [8086:1010] on channel switch, iwlwifi Microcode SW Error: FW error in SYNC CMD CHANNEL_SWITCH_TIME_EVENT_CMD To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881214/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
