I don't think any reset is going to fix what you see. Have you tried different channels on the TIU? Usually signal issues aren't across the whole TIU, though there are failures that can cause that.
Yes, I tried channel 2. Still no luck. Engine recognized TIU presence, TIU can't find engine. Guess it's off to a service center I go...
Have you tried the TIU and a locomotive on a separate track NOT connected to your layout? That might rule out a layout wiring problem.
Yes, I've actually been working on a test track the whole time. Tried plugging back into the layout but that didn't help. It's like something in the TIU just gave out right in the middle of running.
Do you have another TIU? How about some place you can take a couple of the locomotives to make sure all is right with them?
Unfortunately I do not. Should probably invest in a backup now that I think of it.
I live like 20 minutes from MTH's headquarters, but don't know that will help me any...I'll check with my closest hobby shop to see if they can repair.