I want to update you guys on the latest. I was digging around in my box of X10 stuff and I found a *BRAND NEW* CM15A still in its box. I think I ordered this a a spare a couple years back. I put this new CM15A in place, downloaded to it, and guess what - everything works perfect. Just like it has for years, with all the repeaters, noise filters and everything in place.
I am not X10 expert, just a very long time user. The only thing I can say is that both of my other CM15A units must have gone bad. I'm reliieved to know I don't have to switch to anyting else. I hope X10 releases the CM15A again so I can pick up another back up unit or two.
This is consistent with my experiences with the CM15A. I have had about 6 of them. They only last a couple years, and then they crap out. I appreciate everyone's advice.
Tom G.