Surface Book 2 - wifi adapter disappears after a couple of days

[Praveen B]

I was evaluating the newly released Xubuntu 20.04.2 LTS by creating a LiveUSB from the ISO.

All I did was to connect to wifi and browse internet using Firefox. After two days of occasional usage, I found that wifi adapter has disappeared from NetworkManager (and output of iwconfig as well).

Attached the relevant portions of dmesg output.

Output of 'lsb_release -rd':
-START-
xubuntu@xubuntu:~$ lsb_release -rd
Description: Ubuntu 20.04.2 LTS
Release: 20.04
--END--

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-modules-extra-5.8.0-41-generic 5.8.0-41.46~20.04.1
ProcVersionSignature: Ubuntu 5.8.0-41.46~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-41-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.445.1
CurrentDesktop: XFCE
Date: Wed Feb 17 03:06:47 2021
LiveMediaBuild: Xubuntu 20.04.2 LTS "Focal Fossa" - Release amd64 (20210204)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-hwe-5.8
UpgradeStatus: No upgrade log present (probably fresh install)