Well my three year old 2413s V1.B finally got me in this thread. Had to unplug it last week and do a restore PLM and it came back working properly for a day or so. Found it today with the LED off and nothing working. Fortunately I had a v2.1 I bought about a year ago when power line noise problems tricked me into thinking my PLM was failing so round one of the home automation repair was very smooth and easy thanks to this forum. We will see if this awesome thread gets my old PLM back up and running just as easily. Think I'll buy another spare to keep around too...just in case. Such an important piece of our system. I would pay $300 for a super high quality PLM I didn't ever have to worry about failing like this. Thanks to everyone that made this repair thread possible!