No sweat, I'll take any advice I can get
It looks like it might be an issue with my ISP, as although they purport to not block any ports, there has been a massive 46 page thread going on at their own forums since last week about people not being able to connect at all, or getting booted every 10, 20 or 30 minutes.
Incidentally, my ISP is TalkTalk, which I didn't choose myself, they just happened to buy my original ISP, just after I'd signed up to them
Depending on what you believe of the back-and-forth between ISP and MS, it could be a fault with the ISP's routing that was highlighted by the last update to the Xbox.
I've put in a ticket with my ISP, but I'm going to high-tail it out of there ASAP as I just don't rate them. They bought Tiscali and AOhelL too, so you can imagine what kind of an ISP they are This post has been edited by daka daka: Feb 13 2011, 11:11 PM