The connection closed unexpectedly: An existing connection was forcibly closed by the remote host

[Goatee]

Five of us playing.  Dedicated server started from the game folder, nothing fancy, no mods.  Have three of us playing in one house, all connected fine.  My two boys are connected with hamachi, can ping fine etc.   One plays fine.  The other gets

The connection closed unexpectedly: An existing connection was forcibly closed by the remote host
[11:47 PM]
You were disconnected from this server

We've closed servers, cleared entities, restarted etc.  no dice so far.  Thanks!

[Goatee]

So new server, new host, we were all playing fine, now I'M the one getting this message.

 

[Mrtvý Štěňátko]

I have same problem on my server and it looks like when you play on lover view distance it helps.