Network error : connection refused on putty for TCP server

I'm referring this video to create a TCP server using WinSock API. I'm kind of new to network programming and i'm confused to put what ip and port as input to PuTTY to test the server. I've used the code he has written and i've given my system ip and the port 54000 (which is what i've used in code as well) as input to PuTTY. However I get a network error : connection refused