Guild Wars 2

this is driving me crazy been at 4/5 for the past like 5 invasions …. i just want to get these done so I can do the playhouse and get my tonic… gah

The game client has lost connection to the Server. Error 7:11:3:189:101
happens when I try loading into the game on any character.

This has happened since release but I couldn’t find out how to fix it back then so I quit the game, but now I want to play again but it is still happening. It worked at my house but after coming to school (live in a dorm here)2 days after the game was released it started happening.
so I know its the school or my wireless adapter that I do not use at home. The funny thing is it worked and actually loaded in to the game every so often and got my character to 41, were other times it would get stuck on the loading screen, and now it gets the error every time. I don’t know what it is because my friend in the dorm room literally right next to me who just bought the game can log in and play fine but I can not.

Also I just tried running it on my meh laptop off an external hard drive and it loaded in fine which is connected to the same internet.
So any help would be appreciated, or if I am screwed over until I go home in the winter