I have investigated a bit further. - Using a USB wifi adapter (took me some time to force one to use only the 2.4 GHz band as my laptop wifi adapter) I can always connect properly, so the issue is restricted to the intel card I have in my laptop. This should exclude wpasupplicant and network-manager.
- The card in the laptop occasionally works correctly. This is why I originally got the impression that downgrading the linux-firmware package was restoring correct behavior (in fact, it was just by chance that I probably got the correct behavior). - When the card misfunctions, I get wild oscillations in the reported signal quality. Specifically, while the card is just scanning the nearby APs, I see a good quality for the WPA enterprise AP. During the connection attempt, the quality starts to fluctuate close to 0. My guess is that most likely something is starting to fail in the wifi module or that there is an issue with its power saving control. The latter could be kernel dependent, but given the update history, it seems unlikely to me. I'll check better. In the meantime, thanks for the help and advice. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1837440 Title: linux firmware 1.178.3 seems to break WPA enterprise Status in linux package in Ubuntu: Incomplete Bug description: Seen on intel Wireless-N 2230 BGN (rev c4). After the update to said linux firmware version I had issues in connecting to the WPA enterprise wifi networks EDUROAM and ALMAWIFI. EDUROAM is the European universities Wi-Fi network. Ability to connect to non enterprise network is unaffected. Downgrading to 1.178 seems to restore proper functionality. In the next days I'll try further checks to see if the firmware is really the sole trigger for the issue. In the meantime, I am tentatively opening the bug in case others have my same issue. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: linux-firmware 1.178 ProcVersionSignature: Ubuntu 5.0.0-20.21-generic 5.0.8 Uname: Linux 5.0.0-20-generic x86_64 ApportVersion: 2.20.10-0ubuntu27.1 Architecture: amd64 CurrentDesktop: KDE Date: Mon Jul 22 19:27:16 2019 Dependencies: EcryptfsInUse: Yes InstallationDate: Installed on 2013-12-12 (2047 days ago) InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: Upgraded to disco on 2019-06-12 (40 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837440/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
