Do you happen to have another modem sitting around? I would be very keen to know if that fixes your problem!

I was hunting around for my old DLINK but think I passed it onto a friend as I was going to try that too :(

Been in the same house for 6+ years and only ever had a problem with the Thomson. The DLINK was ADSL modem only and I had a Belkin Wireless router.

Ah no worries, thanks for looking though. 

Do you know when your wireless bums out whether the cable connection maintains connection?