Watchguard Wireless

We're getting ready to move to NPM 11.5 and I want to utilize the wireless heat maps.  Our environment uses Watchguard XTMs (22's and 25's) as wireless access points as well as firewalls.  I have the XTMs added but I don't see the wireless clients.  I'd like to get this fixed and try to use the heat maps once we move to 11.5, currently on 11.0.1.

Thanks