Just in case someone stumbles across this in the future. I believe the realtek driver version (here, 4.3.8....) doesn't work with newer kernel versions. I found a much newer driver here:
https://github.com/morrownr/8812au This is driver version v5.9.3.2 (Released Oct 2020) and works with my card: Bus 001 Device 003: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter It appears the original upstream associated with this package is now dead; the maintainer might consider moving to another source. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906112 Title: rtl8812au causes kernel error when connecting TP-Link T4UH To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rtl8812au/+bug/1906112/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
