Is there a way to tell if the PLM is getting power? Does the PLM have an indicator light? I know the plug it's plugged into has power. I have unplugged both units and was sure to power up the PLM first and then the Isy944i. We did have a power outage recently. I am not sure if this could have been my the start of the issue.

Nevermind, After unplugging and replugging multiple times, I got it working again.

If it is a 2413S Dual Band PLM. It has a LED on the right side that lights Green and turns Red during some signal processing.

The older 2412S also has a LED on its right side.

 

If you are running a 2413S and its is around two years old. It probably is failing. They have a reputation of failing just after the two year warranty is expired. Many threads here. Along with the Smarthome and Insteon Forums.

 

One of the early signs is LED dim or out and power cycling sometimes restores it to run for a short time longer. I had one last about one extra week after power cycling.

 

Another sign will be the link database is empty or has only a few entries.

 

If your PLM is a 2413S and around two years old. You may want to think about getting a replacement. Before it dies again.

Edited July 2, 201510 yr by Brian H