JamRan Server Files - Session Server Connection Failed

Attachment 112102
why everytime i run session > login > fieldA on fieldA it will stop because it says "Server Session Connection Failed" " Please wait until stop"
i tried manytimes and replace some server files. no solution, anyone encounter this? can someone help ?

my session server already started and says "OK" no errors.
same with login. what do you think is the problem ?

CFG configuration... try to reconfigure again your cfg's files. you use hamachi right?

Solved.

Same problem here :( what i suppose to chane on cfg file?