I appreciate your reply. I downloaded the 7.2.1 x86 64 bit image right from recalbox.com. It is a clean install. All of the USB WiFi adapters I've tried work fine on a Windows 10 computer, but none of them seem to be recognized by Recalbox. None of the USB WiFi adapters have ever worked for me through Recalbox.
The latest adapter I'm trying to use is the Cudy WU650. On the other PC with an internal WiFi adapter, I can do WPS and it finds the router no problem. On the computer without the internal adapter, where I'm trying to use USB WiFi adapter, The WPS times out right away, and doesn't seem to see any WiFi networks.
I've tried resetting to factory settings. I've also tried the WiFi On/Off suggestion. I've tried using different USB ports, both 2.0 & 3.0. What are some of the other things I should try, before giving up and running a 75 ft Ethernet cable to the router? Haha
Thanks again for all your hard work on Recalbox. I've been a big fan & user of Recalbox for several years now.