I keep getting this when I try to dock with space station or launch with complex ship, lots of parts. Any thoughts, on how to fix, would be great.
Fear

This shouldn't be mod related - This is generally caused by protocol breaks (which should have been marked incompatible with different versions).

I'd need to poke this one myself ;)

found this in server logs:
[21:50:56][DEBUG] : Saving vessel 7b683880-613b-4c86-9804-5d738764459b from Fear
[21:51:26][INFO] : Client Fear disconnected in ReceiveCallback, endpoint 192.168.1.136:49476, error: Cannot read past the end of the stream!
[21:51:26][DEBUG] : Online players is now: 0, connected: 0

This looks suspicious. Any mods?

I have a few mods.

Okay. Please list them.

this is the modcontrol file

Can you repost it please?

her is the list:
Kethane
InfernalRobotics
KerbalEngineer
KerbinSide
KAS
MechJeb
StationPartsExpansion
StationScience

sorry last post I thought was going to have file. file upload failed

thanks for having a look :-)

Thanks. This will take time to analyze, since I don't really have a compatibility record. We'll just have to wait for darklight to take a look at it.

would you have any suggestions. At least I can try some stuff on my own. I just tried everything I can think of. change both server and client to only have tcpv6, changed kessler from 30 to 60. It does get worse with another person on the server. I even tried changing the priority of server, which is on another machine, and killing all other apps on it. Its a i3-3k with 4gb ram. Load seems to be minimal while server is running though. Client running on i5-4k with 16gb ram, ssd, and GTX660ti. seems to handle client with ease.

Try removing mods or hosting the server on another computer and check if the problem persists.