I have a very odd situation where two DVRs are rebooting periodically during the day and evening. I have only caught them rebooting in the act twice but the blue circle is something I turn off and then you know the drill, it comes on after a reboot. Here is my situation and what I have tried to date... HR21 and HR23 DVRs both with 0x59f software (problems seem to start since the update but can't point a finger at it with 100% certainty). HR21 located in living room, on an APC UPS. Shares same power with an HR24 which is on a different software version and doesn't have a single problem. The HR 23 is located in my bed room, on an APC UPS. I'm using SWM. Neither DVR reboots at the same time as the other one. I tested the UPS power by unplugging them and letting them run powering the DVRs for approx 10 minutes without issue and plugged them back in. I plugged one DVR directly into the wall, it rebooted during the day. I believe I have ruled out input power to the DVRs as a possible problem. I originally had the HR21 connected via component cables and it was rebooting then so HDMI interface is ruled out for at least the HR21 but I suspect both DVRs HDMI handshaking is fine as they worked fine about 3 weeks before. Yes, I've been troubleshooting this for three weeks now. I have cleared the program guide data, no help. All connections of course have been verified. I disconnected everything but the power cord and coax input, still reboots. I do not think I have two failed DVRs or two failed UPS. All satellite signal levels are 80 or above (mostly in the 95-100 area on a clear day) for all relevant transducers. I have all the DVRs connected with a ethernet cable. Again, I did disconnect it in a previous test to ensure something there wasn't causing the problem. As I mentioned before, I have an HR24 as well and it doesn't have a single problem. What I haven't done: 1) Not performed a full blown reset to factory (delete all programs) 2) Erase NVRAM (found a procedure but don't know what it will do) 3) Replaced the Dish antenna 4) Replace the SWM splitter and power inserter (I could check the power inserter voltage and see if there was any ripple) 5) Beat it with a hammer (feel like it at times) Right now I'm not sure where to go. I contacted DirecTv, they wrote it up, said they don't have a notice on anything like this problem, tried to sell me a package deal for repair (not opposed to paying for the repair). My only issues with getting a service rep out to my house is, what would they do to verify the problem is fixed? I doubt they will replace both DVRs, not that I really want that either, got a few things on there to watch. And I hate loosing almost an entire day waiting around for an appointment. Last thing, I haven't found out anything about the 0x59f firmware. I see a few people stating they got it, nothing about what "changed". I still feel like it's the firmware. Whatever the problem, I got to get rid of it.