You should have got a build list with your coach detailing exactly what is installed (including serial numbers). You'll find your WiFi Extender listed on that build list. Then google it and find the manual (if the manual isn't included in your Thor bag).
In addition: Make sure you log into Thor's Owner Resources page (have your VIN handy). You'll probably find the owner's manual for it there as well:
I think you'll find you won't need your Wineguard Connect as that is what you already have.