This is still happening to me on up to date 5.8 kernel. I'd consider it very serious bug as for non-technical user the internet just stops working and updates cannot fix it.
Workaround is to choose 5.4 kernel from grub menu. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906655 Title: Ethernet interface broken (Flags mismatch irq) after upgrading to kernel 5.8.0-31 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1906655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs