Sr Peter! The first version, my colleague worked, like my source code now. There are two different are Server and Service. The source code connection i got from him. I think it does not have any problem. I run his program and debug. It run like source code now. ConnectionUID = ""; The connection string are same. But his program can connect to internet while my program is not. I don't know how to fix this problem because i think all method connect are put together and i don't see any problem with them.
