Oho, Microsith! Now I have turned off the option that allows this Babbage-Engine to switch off the wifi adapter "to save power" - twice - I find the wifi adapter to be switching itself off anyway. "Try updating the driver", says the internets. "Can't," says Windows, "because you're already using v3.0.something from 2016, wot is the latest version!"
So how is it that I found, within five seconds of entering the details into a FWSE, a Win10 64-bit driver with a version number of 10.something dated April 2018?
Clicky, download, clicky, install, clicky, reconnect, cross fingers.