Since you mention a lockon, we'll assume you are using tubular track. A couple of questions:
- By insulated section, do you mean one of the outside rails?
- How long is your insulated section?
- Did you insulate that rail from the metal ties?
- With nothing extra connected, does a train run through the section okay?
If you did those things, check each accessory and make sure that the wire from your insulated track is always connected to the common connection. Connect them one at a time until you find the problem.
