From a win32 console TCP client I'm trying to connect to a win32 console TCP server.
The same server console is running in 4 PCs, all with the same O.S (win7-64).
When trying to connect to 3 PCs (our of 4) connect is OK.
To the 4th PC, rc=-1, GetLastError is 0x10061.
No connection could be made because the target computer actively refused it. This usually results from trying to connect to a service that is inactive on the foreign host—that is, one with no server application running.
How can I debug such problem ?
All I know is that the 4th PC contains extra installations on which I don't have information.
Firewall in all PCs is disabled.