I'm having a similar errors, I think it has something to do with the
latest kernel updates. In my case, the kernel modules were updated on
Dec 1. From the apt history.log:
Start-Date: 2020-12-01 07:41:57
Commandline: aptdaemon role='role-commit-packages' sender=':1.297'
Install: linux-image-5.4.0-56-generic:amd64 (5.4.0-56.62, automatic),
linux-headers-5.4.0-56-generic:amd64 (5.4.0-56.62, automatic),
linux-headers-5.4.0-56:amd64 (5.4.0-56.62, automatic),
linux-modules-extra-5.4.0-56-generic:amd64 (5.4.0-56.62, automatic),
linux-modules-5.4.0-56-generic:amd64 (5.4.0-56.62, automatic)
Upgrade: linux-headers-generic:amd64 (5.4.0.54.57, 5.4.0.56.59),
linux-libc-dev:amd64 (5.4.0-54.60, 5.4.0-56.62), linux-image-generic:amd64
(5.4.0.54.57, 5.4.0.56.59), snapd:amd64 (2.47.1+20.04, 2.48+20.04),
linux-generic:amd64 (5.4.0.54.57, 5.4.0.56.59)
End-Date: 2020-12-01 07:43:16
I didn't restart my computer at the time, but shut it down overnight and
restarted in the morning of December 2, and that's when I started having
very similar issues as described in the original submission. The biggest
difference is that the time period of WiFi network disconnects is longer
- normally it'll work for a half hour or more, but eventually I'll get
disconnected and prompted for a password on a network that I've been
connecting to for years.
Might have something to do with Realtek wireless adapters:
allan ~ $ lspci | grep -i WiFi
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
802.11b/g/n WiFi Adapter (rev 01)
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https://bugs.launchpad.net/bugs/1906600
Title:
WiFi disconnects continually (goes "down" in NetworkManager)
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