He talked with Plusnet and after spending a hour with them they was still nor sure what the problem was, he did get a connection after a while by plugging the computer directly into the BTOR modem. Not ideal, but it got him on the net. Plusnet eventually said they will send him a new one hub or what ever it is called.
Anyway, to tie him over i lent him my TP link, I left him on Tuesday with it working, but he was still having a few problems. Today his new router arrived, so I went there fix it up and still had connection problems, it would work for a while and then nothing, but the router was still connected, blue light and the computer still seemed to think it was connected and no limited connection on the network, the browser would just not find the page and come up with a error.
I should say computers, as he have a laptop as well. The new router is a all in one so we done away with the BT modem.
So I have come to a conclusion that there is a external problem, but this is the crazy part, when we lose connection, we also lose the ability to access set up on the router, the browser comes back with it can't find the server.
If it was one computer, I would say it is a computer problem, if it was one router, I would say it is a router problem, so yes it could be external, but why would that stop me getting access to the routers set up pages?
i can unplug my router from the net here at home and still access it.
Oh yeah, the new router looks ok, it is certainly a home hub 5, but with smart start disabled and no BT fon. I never realised that Sagem made the home hubs, but it had Sagem on the box.
Anyway, if someone can throw some light on the problem, I be grateful. Thanks.
Desktop machine now powered by windows 8 pro 64bit, no dreaded metro and Linux , laptop by Linux