On a good note: My wifi started working again this morning.
On a bad note: I have no idea why.

I didn't touch it, reboot it, reset it, reconfigure it, re-anything it. I guess that is the best kind of tech solution you can have, but it leaves me puzzled why over a span of 24 hours it wasn't working at all. It also leaves me frustrated because I really needed it to work last night when I was trying to get some work done. I wound up sitting at our home computer, with my work laptop in my lap, plugged into the network hub so I could get some work done - not exactly as comfortable as the arm chair, but it worked.