DCS Operation In #8 or #9 LCT Trolleys

Could the signal be weak on the track they are on?

Are the batteries holding a good charge? Did you try the shut down test by killing the power?

Im going to assume the track signal is good because other DCS engines work fine. 
What is the best way to test the battery charge? And what is the shut down test?

sorry for the newbie questions & thanks for your help!

Kill the power to the engine when it's running. The sounds should play the full shut down sequence to show the battery holds some charge. I don't really know what the trolleys have for sounds though. 

What do you have for control? DCS remote? App?

There's an engine signal strength test built right into the DCS system to tell you how strong the signal is.

Are you trying to add these 2 on a loop of your layout?

Can you set up a short straight test track that is the only thing getting power and retry adding these two, one at a time?

Sorry for my delay....

just for confirmation, the trolleys I’m trying to run are 11-2025-1 and 11-2026-1.

I’m using the app - no remote. And I’m on my under-the-tree layout (still needs to come down!). 
My engines that connect to DCS no problem show strong DCS signal strength in the app. 

I replaced the MTH battery with a BCR and ran it for awhile in conventional mode to confirm operation. Shut down test confirms good BCR.
Switching over to DCS, the app still cannot find the trolley. I can add other engines, but the app cannot find the trolley at all. 

Could it be that these engines do not operate in DCS mode despite being PS 2?

next thing will be trying this on a test track

Try a recover engine.

SO: as I suspected all along, it was operator error. Following Joe’s suggestion, I moved the operation to a test track and the DCS features all worked as advertised. Even found a few “Easter Eggs” in the sounds files. If I can get a good recording, I’ll post.

thanks for the help!