Well, iOS 4.2 gave me no Wi Fi issues what so ever on the college's network. As soon as I upgraded to iOS 4.3 the Safari app won't work on the college network. As in I have to enter login credentials then the college's network lets me surf the internet. I've got it working but I had to restore the iPad from no back up. I lost all of my work i.e. lecture notes, etc. So I've restored my iPad to a backup with all the lecture notes, saved game progress etc as these are vital for the lectures. So there has to be a bug in the iOS 4.3 were I can't use the Safari app on the college's network (which is an enterprise network) with my "important back up on." I don't mind backing up all of my lecture notes etc on to my computer, if this is the only way to sorting my problem out. I'm just really baffled. Any suggestions? Thanks in advance.