New to TIU and WIU - IOS App Won't Read Engines

Since you have power at the track and your locomotive is not taking off like it was shot out of a cannon, the TIU is sending out the watchdog signal and the locomotive hears it.  This being true, it is not a fuse in the TIU.

I going to guess that the problem is the app settings.  I am running the app on an iPhone 12 Pro with iOS beta 14.4.4 and it works as expected, so it is likely not a software issue.

First, set the Wi-Fi to MTH.  Go to your phone setting and make sure you are connected to the MTH Wi-Fi.  Go into the app settings and make sure it is reading your TIU.

@Danr posted:

Since you have power at the track and your locomotive is not taking off like it was shot out of a cannon, the TIU is sending out the watchdog signal and the locomotive hears it.  This being true, it is not a fuse in the TIU.

I going to guess that the problem is the app settings.  I am running the app on an iPhone 12 Pro with iOS beta 14.4.4 and it works as expected, so it is likely not a software issue.

First, set the Wi-Fi to MTH.  Go to your phone setting and make sure you are connected to the MTH Wi-Fi.  Go into the app settings and make sure it is reading your TIU.

Thank you for your reply.

The app was working as expected the night prior.

I have iOS 14.3 on  iPhone 11 and on an iPad Pro. Neither work with the WIU/TIU. I changed the app settings and tested my DCS Explorer which picked up the engines right away.

I have tried the WIU/TIU on both Home, connecting through a router, and MTH mode, connecting directly. In either case, the phone will control the variable output to the track but won't read any engines on any track output.

The app settings, Tiu and WIU have all be reset.

it's very strange.

I plan on calling MTH today. My only remaining guess is it's a bad unit.

Interesting.  I have been sitting here with my system trying to duplicate what you are seeing.  Based on your being able to adjust the track voltage, we can assume that the app is talking to the wifi and the wifi is talking to the TIU.

When you started up your system this morning, were all of your engines inactive?  I was able to duplicate a condition similar to yours.  Using a variable track conventional engines can be run using the wifi throttle.  Likewise, DCS equipted locomotive will run in coventional - not DCS.  Instead of using a variable channel use one of the fixed channels.  Put a locomotive on the track and apply power.  BE READY IN CASE IT TAKES OFF!  It should just making a clicking sound (watchdog signal) and await instructions.  This locomotive should now be on the active list (assuming it was on the inactive list).

Since I run DCS and Legacy/TMCC equipment amost exclusively I have the two variable channels set to fixed.  Any DCS locomotive that is not on a powered track will be moved to inactive and cannot be recovered until it receives a wathdog signal.  In short you would have to turn the track off put the locomotive on and apply power.

I hope this helps.

@Danr posted:

Interesting.  I have been sitting here with my system trying to duplicate what you are seeing.  Based on your being able to adjust the track voltage, we can assume that the app is talking to the wifi and the wifi is talking to the TIU.

When you started up your system this morning, were all of your engines inactive?  I was able to duplicate a condition similar to yours.  Using a variable track conventional engines can be run using the wifi throttle.  Likewise, DCS equipted locomotive will run in coventional - not DCS.  Instead of using a variable channel use one of the fixed channels.  Put a locomotive on the track and apply power.  BE READY IN CASE IT TAKES OFF!  It should just making a clicking sound (watchdog signal) and await instructions.  This locomotive should now be on the active list (assuming it was on the inactive list).

Since I run DCS and Legacy/TMCC equipment amost exclusively I have the two variable channels set to fixed.  Any DCS locomotive that is not on a powered track will be moved to inactive and cannot be recovered until it receives a wathdog signal.  In short you would have to turn the track off put the locomotive on and apply power.

I hope this helps.

Thanks again for you help. I was on the phone with MTH and we couldn't find any solution. Mailing it in today, wish me luck!

Good luck.  Let us know how you make out.

@Danr posted:

Good luck.  Let us know how you make out.

Will do. Thank you again.