Being in the Nether causes "End of Stream" error

This is the error I get after logging in to any nether world. the same happens if I teleportation to there and not just login.

Code:

2011-10-23 04:34:07 [INFO] Xxxxxxx[/xx.xxx.xx.xxx:xxxxx] logged in with entity id 2001 at ([2_nether] -20.536086702793227, 80.5, 38.52114822708995)
2011-10-23 04:34:08 [INFO] [MultiInv] Shared worlds loaded with no errors
2011-10-23 04:34:11 [INFO] Connection reset
2011-10-23 04:34:11 [SEVERE] java.net.SocketException: Socket closed
2011-10-23 04:34:11 [SEVERE] at java.net.SocketOutputStream.socketWrite(Unknown Source)
2011-10-23 04:34:11 [SEVERE] at java.net.SocketOutputStream.write(Unknown Source)
2011-10-23 04:34:11 [SEVERE] at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
2011-10-23 04:34:11 [INFO] Gocarts lost connection: disconnect.overflow
2011-10-23 04:34:11 [SEVERE] at java.io.BufferedOutputStream.flush(Unknown Source)
2011-10-23 04:34:11 [SEVERE] at java.io.DataOutputStream.flush(Unknown Source)
2011-10-23 04:34:11 [SEVERE] at net.minecraft.server.NetworkWriterThread.run(SourceFile:104)
2011-10-23 04:34:12 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?

I only get the can't keep up message when this error happens.


Has anyone else had this error before?

 

try delete the nether and let it regen.

 

That was the first thing I tried, didn't do anything.