Here is the port forwarding settings I made in my router config if anyone would like to take a peak......
Yeah port forwarding is different for all vendors and sometimes even within a vendor. Really irritating if you don't know the protocols.
You shouldn't have to do anything on the modem, as it's just the external connection, although I couldn't speak for any outside the UK.
If you have 7774 forwarded to the local IP address of your computer,
AND your local computer's firewall has the port opened, it should be good to go.
This is not something I have checked, will look into this now. Thanks. Frustrating when you know it is some stupid simple flip of a switch somewhere:-)