Lag help? already tried other stuff.

So since i bought gw I have always had minor lag problems, mostly because my internet is incredibly stupid. But over the past few days my ping has dropped to in between 850-1200 and the dot is always blood red. This has not ceased. I tried everything in the common lag problems guide, and my uncle, who is amazing with computers and a pc gamer himself, did something fancy involving ports. nothing helped. i'm not asking for solutions, just suggestions anyone has to possibly identify what the hell could be wrong here? it has made gw virtually unplayable

Call your ISP.

Tanker's probably right. The clue is in the " mostly because my internet is incredibly stupid" bit.