I had an interesting Insteon hiccup this morning. I first noticed it when my Insteon motion sensors wouldn't trigger programmed actions in the eisy. The troubleshooting steps I took:

• Used my good ole ELK ESM1 X10 signal strength meter to see Insteon transmissions from the motion sensor. Yup. It's handy for that.

• Tried activating am Insteon wall switch to see that it wasn't updating it's status in admin console. Event log showed no events either.

• Tested a 3 way switch, confirmed that the slave switch was activating the one with the load. Could also control switch from admin console. So outgoing Insteon comms and signals between devices was ok.

• Rebooted the eisy, in case something wasn't working right or stuck with Insteon reception. No change

• Now focused on the PLM: unplugged it and plugged it back in. No change

• Alright, launched a "PLM Restore". That fixed it.

Sign of a failing PLM? That's my thinking.

Opinions, comments? 🙂

That is a sign. If either restore PLM or unplugging from the wall and replugging fixes it... highly likely a dying PLM.

Look at the link table count can help, but..... wait for it to happen again as once you restored, it has its memory of links back for a while.

If it is a failing PLM, these events will cascade until its finally dead.

Yes, I'll wait, to see if this was just a freak one time occurance.

For the link count, are you suggesting that I check if the link count has changed, or just if the link count is getting high? I only have about 340 links.