In the non-working case the iwlwifi module isn't loaded, which is obviously a problem. Can you provide the output from the following commands when wifi isn't working? Does wifi work after these commands?
$ modprobe --show-depends pci:v00008086d00003165sv00008086sd00004410bc02sc80i00 $ sudo modprobe -v pci:v00008086d00003165sv00008086sd00004410bc02sc80i0 At this point I'm not seeing any obvious differences between the two kernel versions which would account for the regression. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1545916 Title: intel wifi [8086:3165] (rev 79) failed to work after updating the system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1545916/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs