Your whatevercoin.conf needs to have a '-server' parameter within it.
Then, connect your miner to 127.0.0.1 (localhost) and use whatever rpcport is indicated in the .conf.
Let me know if you're attempting to connect multiple machines to a single host through your lan.
Ideally, the .conf should contain this information at a minimum:
listen=1
daemon=1
server=1
rpcuser=yourusername
rpcpassword=yourpass
rpcport=coin's rpc port
You can launch with the -server parameter as a shortcut target modification or through the cmd prompt. However, just adding it to the .conf is the most sensible solution imo.
Are you talking about lauching the wallet with -server parameter in the properties?
Noob question. How do you input the -server parameter?
Thank you.