I use a RealTek Family router, and cannot host any games. They dont appear on the list of games, and I have tried to open the TCP/UDP forwarding or whatever, to no avail. I love hosting servers, and havent been able to for some time since arrival of a new pc + router. Help would be much appreciated

If it doesnt appear on the master server, you've either told it not to use the master server, or you have an outgoing firewall. In some cases there are home routers which REQUIRE you to open some outgoing ports; some of the netgear ones for instance.

The outgoing port you require is TCP/29339.

I do ask for it to apper on the "internet" settings.
However, I appreciate your help and will get back to you when my mums boyfreind who manages the router (because hedontlike me) as I cant access. Will give results asap