Hey Michael, this is a known issue that we’re currently investigating: FIXED: Kurt Kinetic Trainer receiving 'No Signal' when pairing with Android Zwift Companion
Right now if there is a way to connect to Bluetooth without the Zwift Companion app that would be the only workaround. Or if you have an iOS device that can run Zwift Companion.
We’ll update that post as soon as we receive new information, thank you for your patience.