My airport extreme (AE) can't get an internet connection anymore - it's been working fine for 2 years beforehand.  My modem works as I'm currently connected to the internet via my modem directly (i.e I've by-passed my airport extreme).  I've tried hard resetting my AE and modem (interestingly it worked for 1 minute or so before losing its connection) and I've tried to reconfigure my connection but no luck.  I've spent 4-5 hours googling AE problems/solutions and trying various things but nothing fixes the problem. I get an error message when trying to reconfigure which I think is at the heart of the problem.  Any suggestions what to do? Should I remove and re-install - if so how do you do this. Or do you think there is something wrong with the AE itself?  Can I get the AE tested somewhere? Note: the airport utility shows that the AE is connected but it the internet isn't.  Any ideas would be appreciated.  Thanks