Here at the university they provide me with Wireless internet while iam on my Job.

Randonly the signal goes out and come back up; from no bars to 6 bars;

I used interference roubustness, is that what i SHOULD use? I cant visablly see the router in this building, nor do i know if its even IN this buidling.

I can have fine 2mbs singal for an hour then RANDOMLY it goes out. Is there anything i can do to insure my signal isnt going to go out for these 15 minut intervals?