To connect two ANT devices you must match Network key, channel period, channel frequency, and ID (Includes device number, device type, and transmission type {These can be wildcards by setting them to 0 on a slave}). My hunch is that these parameters are not set the same, and that it why AntWare can't connect.
Check with Wahoo fitness what the default ANT channel parameters are for the Class you are using. (WFHardwareConnector??)