I know that the TIU finds engines not the WiFi unit, however I have a strange situation where the handheld can find and run an engine but when I try and add the engine with iPad and WiFi unit it fails to add the engine and returns a TIU not found error
If I reboot all is well with TMCC and some MTH engines but not all ? two of the engines that fail are a PS2 northern and a K4 PS2
Is it at all possible that the engine battery is marginal ? maybe but why would it work with handheld but not WiFi?