I recently developed a problem with my VIP-622 and OTA channels. First problem I noticed was if I selected any OTA channel from my OSG the receiver would immediately reset with message "No signal" and go into it's reboot/acquire satellite mode. After the normal reboot process I noticed all my guide data was gone, including Dish channels...had to do check-switch method and let the guide download again. After 3 days of watching that same process occur I deleted all my OTA channels and select "Done" and that worked...now no OTA channels listed in the Guide... Later I returned to the OTA menu and selected "Scan for channels" option and immediately the receiver displayed the "No signal" message and went into the reboot mode. I also tried the option to "Add channels" and manually select the channel number (which starts at 2) and as soon as I did that the "No signal" screen was displayed and the reboot process started again. I even disconnect the OTA coax from the 622 and tried both the "Scan" and "Add" options...but the receiver immediately displays "No Signal" screen and rebooted. My firmware is L736RGB-N, bootstrap version is 1731RBGB Right now it looks like my only option is to replace the VIP622... Anyone know of a fix for this problem before replacing the receiver??