iMac (late 2009) no longer sees networks after I set up a new Time Capsule.
I just installed a new Time Capsule. My MacBook Air and iPhone connect to the new network but my (late 2009) iMac can't see any networks at all. Is there a diagnostic or should I just assume my Airport Card is dead? (The iMac can connect to the network via an ethernet cable). Thanks.
iMac, iOS 7.0.4, Late 2009, 16GB RAM , 2013 2TB HD