Comment by preg_match

In my experience hangs usually happen from no time limits on units or excessively long time limits. I fried a NIC a while back and network-manager-wait-online has no time limit. Usually this isn't a problem, but the NIC was fried in a very unique way where it would continuously try to connect and then downgrade connections.

The bright side is this is all logged, trivially grep-able, and easy to fix.