I have a early 2009 Mac Pro that gets its internet vis a spectrum Modem hooked to a 5th gen airport extreme. I have a 2nd 5th gen airport extreme that I would like to use to extend the wireless signal in my home. When I launch Airport Utility, it does not see the 2nd airport extreme which, at the moment is literally 2 ft away from the 1st airport extreme! i have factory reset the 2nd, but that doesnt work. Any advice would greatly be appreciated.