I have Bluetooth connected 
I bought this PCIe card from Amazon (UBIT- WiFi 6 Card for PC | Wireless PCIe WiFi Card | Up to 3000Mbps with Bluetooth 5.1)
Easy setup into Windows 10 desktop. Zwift failed to connect at first, but I then reinstalled the above exe file… and just as I was running out of sacrificial chickens… it finally connected!
Saga finally over… thankyou Zwift forums!
(Now just hope that Kickr bike gets it steering back, and they sort out the horrid sticky draft effects whilst climbing)