Same here. It's getting REALLY frustrating when you can quote the error code in full from memory. I've tried the suggestion to use a VPN but that just spawned 2 new error codes while trying to join a friend's session. I wouldn't mind but for the last three days I've joined friends posse to escort trading deliveries just to get kicked less than 5 minutes in, and you can't rejoin a posse once the mission has started even if you were there at the beginning. Between this and flying hackers dropping dynamite like B-17s, I think I'll shelve this game until R* sort this out. This is an exercise in frustration.