When I have power failure one of my 500's thinks there are no tuners available so then it is a boot order procedure. A normal reset like say all three dvrs reset in menu at same time all is ok. That box also lost its "Tuner 2:SAT, Record" and was brought back from the dead tuner 2. Never lost that again.This all was in previous version or versions of firmware. Other than that no issues with the new firmware for me. All is good with it so far. Remotes good on all 3.