A real poser

[Spectrum <none@xxxxxxxxxxx>]

OK. Background. Been X10ing for 10+ years. Everything in the house is
automated. Use JDS Timecommander, coupler/repeater, whole house surge
suppressor, 3 house codes, noise filters on all computers.

Now, about a month ago, one light (3 way switch) stopped coming on at
night. I can turn it on manually at the switch, then I can dim and
turn it off, but it will not come on by X10. You can call this guy C6

I assumed the 3 way had crapped out (they do, sometimes) and ordered a
new one. When it came in, I replaced it but same thing.

Then I did a little more investigation. Seems the thing works great
DURING THE DAY. But in the evening it stops. Won't turn on by X10.

That led me to look at my X10 dusk sensor. However, opening the
breaker that feeds it made no change. I've also tried opening all the
other breakers (one at a time) and had no effect. I was thinking that
one of my other modules was about to die.

During the day, when it works fine, I've tried turning on all the
evening lights (evening lights macro) and it still works fine.

In my evening lights macro, this light is the first thing that
operates.

It's got me stumped. I don't have a signal strength meter (never
needed one) but I'm totally flabbergasted here. Perhaps tomorrow, I'll
try a different house code. But tomorrow it'll work fine.

Any ideas would be appreciated. I've never run into anything like this
before.

Thanks,
John