unable to connect to battlenet

[Izohora]

at home Im able to connect normally to battlenet but when Im in dorm (where cca. 2000 people are at same network) i cant connect...
when i click on battlenet i says initializing connection to battlenet and it stucks there... if i wait for about 5 mins then on my gproxy I get messages: 
tcpsocket error <recv> econnreset
local socket disconnected due to socket error

network is very fast so i dont think thats the problem...
i tried to fix it with battle.net Diagnostic Tool but it didnt help, i allways get "error!0" for any ip i tried connect to...

[1QuestioN!]

when you start a wc3 game , click to change channel and pick eurobattle without gproxy and try ,if you cant join gproxy is a problem....

[Rio^]

NetFramework version ? Need 3.5 It's error about Gproxy.
Reinstall EB installer, and try again.

[Izohora]

nope, still nothing, cant connect to other channel, reinstall didnt help eather...
I think it is because 2000 people has the same ip adress because some people on internet posted that they had the same problem when 5 or more people are on same router ... and everything works fine when Im playing at home...

[Astaroth]

Do you play on same notebook when at home as well as in dorm? If yes I guess gproxy is set well.

Maybe some ports are blocked on your dorm's net (but I don't think so, why would it be blocked?!)

I remember my friend who was on dorm had problem with other ppl. He wasn't able to play anything online, he wasn't even able to send an e-mail coz others was uploading something all the time so he had literally no upload.

[Izohora]

yes i play on same notebook, and network speed is very good (upload and download) ....   :S

[no ban yes sir ?]

yes i play on same notebook, and network speed is very good (upload and download) ....   :S

pm kassel , he knows the solution