If you get the right sysadmin, one who isn't "whoa, that isn't Windows, OF COURSE it doesn't work," there should be a way to figure this out easily, I would think. I mean, your N900 should at least SEE the damn thing.

Since it DID work once, unless there were drastic changes, it should work again.

I wouldn't uninstall programs one by one, as was suggested. I would back up everything and reflash. Without restoring anything, I would immediately look for the network.

I didn't see in all the discussion whether you have seen anyone using Linux that can get on. You might be able to find a clue by asking them if they had any trouble doing it.

There have to be Linux users on campus. Have you talked to them? Someone sophisticated might get interested in the problem...

I don't think Titan's kernel has anything to do with it.