So unfortunately I solved the issue by switching to an Intel 7260 card, which has been working great using the default kernel, firmware, etc.
We can close this, and thanks to Seth for your assistance. :) Sorry I couldn't provide any useful information for anyone else to benefit from. :/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1602051 Title: 5Ghz link no longer works on 16.04 - iwlwifi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1602051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs