I had to reset my router as I kept losing connection.
Now I cannot open port 1808 so I can run my server...........

This is how I've set it up but maybe I've got the server IP & remote IP confused.
The server IP is my router IP & the remote IP is the PC that runs the server.
Yes, I have restarted the router after making changes & even turned off the firewall.........
Any ideas guys?
I have managed to make the server open by setting DMZ which I think may be a bit of a security issue.