@juniata guy posted:
That’s pretty much it. Before I got the WiFi, the only power to the TIU would have been through Fixed 1. After adding the WiFi, that was putting power to the TIU as well...
Hmm, seems like something is awry in fixed input 1 then. If your trains are working, that’s good, but the TIU should work fine with power applied to that input.
I have a Rev. I3a TIU sans USB therefore there is no power coming from the USB so I can’t test this, but maybe it’s a sequencing problem. For example maybe if there is power applied to the USB port before power to fixed input 1 it then fails to use that input for power?