Hi Barry,
I have your DCS WIFI Companion book and I am trying to figure out how to wire a large layout 32' X 37' Have broken the upper loop into blocks. Home run wiring with 14 gauge stranded. Gargraves track with Ross switches and all soldered joints. Have updated the TIU to 5.0 and the remotes to 6.1. MRC transformers. The TMCC stuff all runs just perfectlly fine but the MTH engines often will not address- I get "Engine not found" or "Engine not on track" when the engine is right there sitting on top of the feed connection. The engines have been properly added, and sometimes they run just fine. Even put an MTH lashup together successfully this afternoon. Other times can't even address. I ran a signal test and got all 10's. ????????????????