I used to average around 100-150 ms, however now I'm always around 500-600 ms...
I'm Euro playing on Euro Disctrics. I've tried looking into WHAT could possibly how caused this (outside of GW). I've played other games, and my ping on most of them (American servers-shooters) is even BETTER then it normally is. (80-100 ms)
So in overal, my ping has improved (for most other games I've gained 50 ms), but for GW, I've lost 400 ms.
I've tried looking into my Bandwith Allocation, and I've made sure GW is highest priority.
The ONE thing that might cause this (as far as I know, outside of GW servers) is the current heatwave that has been going around in Europe.
My fan is too weak to support my Graphics card when play image heavy games (such as GW) so it overheats, ending up in some computer lagg. (Where the intire computer freeze for a few seconds every now and then)
This however wouldn't explain why I can still chat on MSN, listen music, download stuff, post on forums, run Photoshop at the same time WITHOUT any issues.
So, anyone got any clue what might have caused this? Does anyone else playing on Euro servers have been having issues?

Ty in advance