This is my problem, I have a small track, with a TIU, an AIU and my Lionel legacy, all connected, my AIU accessory control 3 blocks in my yard, and all worked fine, I decide to add a MTH WIFI module to the system, and I update to version 5. After that when I power a block with a MTH engine on it, the engine start thinking as it is in a AC track, that mean, at the moment I power the track, the engine start, and it is suppose to do nothing until I start it with the control. The engine start in a neutral, and with the remote control only control bell and whistle (the shut down too), nothing else. If I restart the engine with the control remote, it's works fine. Same for all my MTH engines, I try this:
1- connect the track directly to the TIU, and power up. Works as expected!!
2- change the power of track to another fixed channel, using AIU accessories, same problem.
3- use toggle switches instead of AIU, same problem.
4- change power supply, and same problem.
My Lionel engines work as expected.
Any suggestion, exist any way to return to DCS version 4.
thank you