Hello,
I've been using my x10 system (CM15A + ActiveHome) since October with no problems. I am using house code J and everything seems fine. I recently decided to start using another house code for some macro triggers which would then call other units on my monitored house code. When I went to do this, however, I found that somehow my CM15A only hears Housecode J with any reliability. I can sit in front of the PC watching the activity monitor and press buttons on my palm pad or remote wall switch and the only codes that get received well are the Js. Anything else I have to hold down for several seconds, and often that doesn't even work. It does not help anything if I change the tranceived codes or the monitored house code in hardware setup. It's almost as though it has been dealing with only J codes for such a long time that it can't remember what to do with the other commands.
I do have two tranceivers in the house, and they are both set to J, but I tried changing them to the other house code when sending the test signals from the remotes and it did not improve reception. (Honestly, one of them is totally out of range anyway; the other one might be close enough to the CM15A, but it doesn't interfere when I send J codes).
I'm sure I left some things out that I've tried-I have spent hours trying to figire this out. Any advice? Thank you!