There's a difference between disabling wifi, or using another network connection, and actually disabling the wifi card (or any other network adapter in the network adapter settings). Don't disable the network adapter.
That being said, a lot of customers do end up doing stupid things like disabling network adapters, so we're going to make TurboActivate 4.0 more robust in detecting network adapters that are still connected to the machine (but aren't powered up).