Hello, this can be caused by several different ways:
1.) Your university is blocking the UDP ports required.
2.) Your friewall is blocking the UDP ports required.
3.) You have a virus, and that virus is affecting ports.
Try disabling all firewall(s) and antivirus(s), then test, if the problem still occurs, I can help you via Team viewer, if you add me on msn (
[email protected]), and catch me when I'm online.
Thanks!