Uncontrollable Lag?

For the past couple of weeks, I've been experiencing absolutely terrible game lag, upwards of 500-1500 ping, where I used to be consistently between 70-150 ping.

I am on a college internet connection, and I get great internet speed on everything else except guildwars:

I normally clock in at 20-50 ping when I'm playing TF2 (that's sever based... but still...).

I have no idea what's causing my game to lag this badly, but its getting to the point where even RA becomes impossible to play, and GvG is out of the question.

Has anyone else been having the same problem?

terrible lag lately...am i normally dont lag - Perhaps its the foundations for the BMP? (i hope)

which is why i rarely do AB lately.... lag very bad...