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) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906600 Title: WiFi disconnects continually (goes "down" in NetworkManager) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1906600/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
