Hey Wes,
First of all, are you using the latest version of TurboActivate (as of now, 3.4.6)? If not, that's the first step.
Next (after you've made sure you're using the latest version of TurboActivate and they're using the latest version of your app) make sure they're not "disabling" the network device. Just connect to the network using whichever device they want (wireless / wired), but don't disable the other device (that makes the device "invisible" to TurboActivate for fingerprints).