I purchased tnet and StarlinkUI Package, all the resources are up to date. In strict accordance with documentation provided Starlink scene, other features are good, but Internet Tcp Lobby alway show searching, what did not happen!

I used aliyun server, a firewall is set up correctly and the port number. Online port detection tool checked ports are open.
Connect to the game server via tcp ok, but tcpLobby server is alway show searching!!
Unity Vesrion is 5.x, Server is win2008 x64,Can anyone help me please? Thanks!
add more details:
1.using telnet myserverip serverport is ok but using tnet StarlinkUI Package always show searching....