I finally got back into my train room. I changed the batteries in the remote. Verified the TIU address, and my current remote is 6.1
I used, ironman1, suggestion about using a single test track. It did work. I was caught be surprise because the remote for the engine first said, "out of RF range".
Then the engines started up and I quickly did an ad engine(s) on the remote.
As to what I was missing in the procedure, I am not certain.
Thank you all for the suggestions and the support.
Richard