Winerror 10061 and/0r 10057

I’m working through Python tutorial that teaches you by coding 5 Games. I’m up to the two-player online Chess tutorial, and cannot progress past the network connections. The server starts, but the client does not connect to the server. I get Winerror 10061 stating that the server refuses to allow a connection with the client. I copied the sample code for server/client from the Python doc for sockets and tried that, and got a Winerror 10057 sometimes as well. So it’s probably a Windows 10 issue, an IDLE 3.8 issue, or a Firewall issue. Any ideas?