N4 wifi problem, help please

My N4 is no longer able to detect my home network. It detects my neighbor's network and several other networks, although it cannot connect to any other network. When I try to connect to a detected network, it just says "Saved". My home network is working fine and several other devices in the home are connected to it. In fact, my wife's N4 is still connecting with no issues. I have tried rebooting the phone, rebooting the router, telling the phone to forget the network, changing the channel on the router, no success. Running version 4.4.4.

Any thoughts on what might be wrong or ideas for a fix?

Thanks,
b