Comment 4 for bug 2069598

A bug was found and fixed with a recent update to the checkbox test for this that was causing some formatting problems in the netplan yaml. While we're waiting for the packages to update, we reran these tests on rpi400 and cm4l with the previous good version of checkbox and all but the wpa 802.11n failure went away. However the 802.11n one is still very reproducible.

I sshed into one of the failing devices after it was done and was able to get a working wifi connection to that wpa 802.11n AP that we have in the lab manually on one attempt, then removed the config and I was able to get the checkbox test to pass in isolation one time. After that though, I wasn't able to make it pass again so the passes seem to be a fluke.

Checking dmesg after the failed runs, I found a lot of warning traces that seem to be related to the wifi driver:
https://paste.ubuntu.com/p/5XbRdGP4Cf/