Co-op is not worth the trouble right now

It seems like I can barely play in a group for 5 or 10 minutes before crashing for half a dozen different reasons. Even if I don't crash the party is held up after almost every challenge because someone else crashes and we try to wait a minute to see if they'll be able to rejoin without crashing AGAIN.

I was a staunch solo player when I first started playing, but after giving co-op a try I ended up having a lot of fun with it. It sucks that its not really worth trying to do right now. 

I've been trying to play since the server restart an hour ago. I got a total of 4 challenges done between crashes before giving up. I'm a daily player and I'm trying to be supportive and patient, but y'all are making it tough.