It seems like everything is working as of now. I know I still have a couple of bad modules, but that's another matter.
I really don't know what set all this in motion, but it may have been a combination of things:
- Changing from AH to AHP; maybe things didn't import right.
- Changing PCs; same thing about files being copied/imported
- Possible failing CM11 and/or Serial port or adapter
- A variety of power surges and spikes over time
- Operator error due to less than clear help files included with AHP
- Program registration
- Household interference ('Signal Suckers')
I still don't know if the CM11 was going bad, but I prefer the USB version and the added features of the CM15 (RF receiver, signal repeater). When trying to use the CM11, one of the newer PCs I tried had Serial Ports but the other did not, so I had to use a USB>>Serial adapter. That's no longer an issue with the CM15.
I don't know if I needed the PC01, but it seems to be OK now, no flashing LED. That may be related to getting a Macro working with staggered On commands instead of multiple On commands from Timers at the same time.
The TM751 is still installed and working with no apparent conflicts.
I believe one of the biggest things I did was to delete and recreate each module in AHP. None of them worked from the AHP screen icons before doing that even though they all worked from remotes. They all did after that, including a couple of wall switches I thought were completely shot. I had even tried changing House Codes with no results.
At this point, as funds permit, I may be able to add some modules for exterior lighting use.