AFAIR, this bug happened to me in Lenovo Thinkpad T430. However, the bug is already confirmed in the kernel ML.
Please, could you attach the log files like the Ubuntu Kernel Bot says above. Thanks, nzoueidi -- 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/1793022 Title: Cannot connect to wifi after kernel update 4.15.0-29 to 4.15.0-34 Status in linux package in Ubuntu: Incomplete Bug description: I experienced the same problem on two different Dell Laptops (an old dell 640m and a newer Dell E7450). After fresh install of Ubuntu 18.04.1 wifi and network work flawlessly but after routine kernel update (from 4.15.0-29.31 to 4.15.0-34.37) network manager correctly show wireless networks but cannot establish a connection. Rebooting with previous kernel (4.15.0-29) fix the problem and I had to set it as default in grub. Please find attached the report obtained running ubuntu-bug linux after booting the latest kernel. Bug symptoms look similar to those described for bug 1788997 but as far as I understand they do not seem related. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1793022/+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
