Thanks for your help, have got the software running. Connected to valve servers blah blah (see attached)
BUT, won't appear on internet servers, only on LAN.
Not a port forwarding issue, server is running through 27015 and I have verified that port is open with
Portchecker.Command line is: srcds.exe -console -ip 192.168.1.66 -game gesource -tickrate 33 -port 27015 +maxplayers 16 +map ge_basement_classic sv_lan 0
I am behind a router so am dialling my private static IP. My public IP is dynamic and it wouldn't make sense to use that anyway (as router acts as proxy).
Am I doing something critically wrong here?