time out when connecting to the server ,please check the net

time out when connecting to the server ,please check the net Time out when connecting to the server,p;ease check thenetwo time out when connecting to the sever,please check the netwo Connecting to the server什么意思 哪位高手知道 错误信息：Please check the email server reply:550 connecting to server sun 0nline connecting to server.please wait. There was a problem connecting to the database server.The fo check the manual that corresponds to your MySQL server versi failed on connecting to server Problem connecting to the servers. Please r______ to close the door when you go out.