I think I'm having the exact same problem. My oldish dell xps 13 with this network controller has worked fine since ubuntu 12.04, but since installing 20.04, wifi keeps dropping out, bringing up an authentication dialog. Since the dialogue already has my credentials filled in, I would already be happy if it would reconnect without bothering me.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1910856 Title: Ubuntu 20.04.1 - network-manager instable with Centrino Advanced-N 6235 wifi Status in network-manager package in Ubuntu: New Bug description: Hello, I am facing an intermittent problem after upgrading to 20.04. I keep loosing the wifi connection and requested to put the wifi password again. I troubleshut the problem on forum.ubuntu-it.org (https://forum.ubuntu-it.org/viewtopic.php?f=9&t=643817&start=20&sid=3100928dda5ea320e82d5db653e95611) but we could not figure it out. I am reporting here the same information provided to the forum and I am available to provide more. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: network-manager 1.22.10-1ubuntu2.2 ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73 Uname: Linux 5.4.0-58-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat Jan 9 14:57:23 2021 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2014-12-18 (2213 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) IpRoute: default via 192.168.1.1 dev wlan1 proto dhcp metric 600 169.254.0.0/16 dev wlan1 scope link metric 1000 192.168.1.0/24 dev wlan1 proto kernel scope link src 192.168.1.179 metric 600 SourcePackage: network-manager UpgradeStatus: Upgraded to focal on 2020-10-31 (70 days ago) modified.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: [connection] wifi.powersave = 2 mtime.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: 2019-01-14T23:22:39.355283 nmcli-dev: DEVICE TYPE STATE IP4-CONNECTIVITY IP6-CONNECTIVITY DBUS-PATH CONNECTION CON-UUID CON-PATH wlan1 wifi connected full none /org/freedesktop/NetworkManager/Devices/3 TIM-18679861 817f1693-1daa-4c3e-b81f-46d576414c34 /org/freedesktop/NetworkManager/ActiveConnection/1 eth0 ethernet unavailable none none /org/freedesktop/NetworkManager/Devices/2 -- -- -- lo loopback unmanaged unknown unknown /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.22.10 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1910856/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp