Closed Multiplayer: Client-Server Connection no longer valid

First off, this game is great! But as my roommate and I attempt to play, the server works for a few minutes then one of us gets kicked followed by the message: "client-server connection no longer valid". Whichever one of us that is running the server stays connected and doesn't have a problem, but the person who is doing the connecting always gets kicked. It seems to happen when ever it's loading/rendering blocks. I've had it happen where I am on the map but as I go either left or right the blocks don't load and when I jump into the abysmal beyond I stop and float in midair. However if I land where blocks should be I can jump back to safety on the blocks that actually are rendered. This only happened a few times but we are getting consistently kicked. Hence this report. Hope it helps.

 

Yea, I am having the same problem.

 

Have you tried turning it off and on again? But no, seriously, I had the same issue with my friend. Everything was fine until the last patch, and then we'd get kicked from the server within a few minutes of joining. I happened to restart my computer earlier today, and just now I tested my server and so far, so good. I'll update if it starts going bad again, but it might be worth you both doing a quick computer restart.

EDIT: Still going strong, looks like the computer restart fixed it

 

I also got this problem i wish i knew what caused it.

 

I havnt had a problem with it on multyplayer, in fact my multyplayer was actually less buggy than single player. But now everytime when i try to start playing single player almost like times out? it says Server client connection no longer valid. STAAAAAAAAAARRRRRRBOOOOOOOOOUUUNNNNNND GHAHHHHH WHYYYYY