LMS Perfect World

please help me..
when i logged in, there's always appear some notice that said if the connection or link between me n the server was broken..
it's appear when i had put my id n pass then i enter it..
can somebody help me, what the causes of it.. >.<

please help me, (im so sorry if my english so bad)

Firewall is off? Your internect connection is stable? Your internet provider doesn't block any ports? Check it.