I have, yeah. Twice. Only had a disconnect issue once.

I think the disconnects may be due to some kind of behavior...

I know I can reliably get disconnected by crafting a ton of throwing knives in a row.

Did you manage to complete Back to Basic? I've tried three times now and it's disconnected me before each completion. 

Seems to me that when the servers crash, you can lose as much as 30 minutes of gameplay progress. Public quests, personal quests, loot, exp -- it all disappears.

These rollbacks are pretty unacceptable, especially when the crashes happen so often. 3 times in the past 2 nights for me, each time losing quite a bit of progress (probably a little over an hour of stuff). In one case, I had to basically repeat an entire personal quest because of the disconnect throwing me back at the start (back to basic).

This is not fun.

Server crashes and losing progress via rollbacks