Matt, I had the same problem this week, mysteriously stopped working. Pulled my hair out until I found your thread, I was using the same methods as you and couldn't solve the mystery. Thanks for the posting, and thanks for everyone who replied, saved me more pain! Did you replace the bad power supply and if so, do you have a part number for that power supply? I have lost two power supplies now, but the baluns are both good, don't want to waste them. Picture attached is the PS and the balun, since these seem to be very sensitive I want to make sure I have the exact PS but can't find the one pictured in a google search. I can get close, but figured I'd ask you all as the experts.