His setup is anout 30feet on Bachmann easy track-grey with Backmann cnc contoller.  When I see him this week, we'll check all the connections & clean everything.  Just wanted to be sure he didn't need some type of end track to make this work.  Thanks for all your advice.

My grandson is setting up his easy track as a straight layout on a ledge in the basement. He wants operate train down the track and then back it up to starting point. Engine stops about 2/3 down the track, any help would be appreciated.