I have seen this problem many times. The thing is my school has a WiFi with proxy authentication, and none of the apps except for Safari and Mail work. The thing is that I found a solution, but it doesn't really work for me, maybe you can help fix it.
It was said that I should set my proxy trough Terminal
As my proxy requires authentication, I found that it should go as
The Terminal gives me no error, but no confirmation either. Apps still don't work. Oh, and also, ping command does somethign weird - for example, if I enter
r1g.edu.lv is my schools domain name. How and why is that happening?
trying to connect to http://modmyi.com.r1g.edu.lv
Anyway, hope you can help me out