Trying to figure out if the multiplayer is down while hammering out issues with the latest patch, if it's a glitch, or if there's something I need to do before I can resume using multiplayer.

Doesn't matter if it's the cooperative multiplayer or the PvP, I try to connect and after a few seconds I get a notification the multiplayer is unavailable.

I have only thought to check with my psyker character, didn't think to try with the assassin to see what happens, but I'm sure the issue would persist regardless of character.