Dojj your 100% sure that theres nothing up your end? i.e dodgy modem(since its old) wireing, filters etc? although i must admit most times im told to check all that my connection decides to work flawlessly for weeks
At the moment this ADSL modem seems to be pretty good but if i get to much trouble with it ill change isp's

How are you surfing the web now then dojj?