I've just purchased a private master server, it did well on the first day (60/60) and I was able to play fine. I hopped on the server earlier today and was still able to join and play fine. I just tried to connect back to the server about 20 minutes ago and I got stuck on the JOINING GAME screen. Everyone of my friends can join the server and play completely fine except for me. I can hear all of the sounds (ambient wind/shore line stopping and starting) that usually mean I'm being spawned into the server but it just stays on the JOINING GAME screen... I've restarted my internet and PC with no luck.
EDIT: I've restarted the server and it seems to have fixed the issue.