I woke up to the 722 error message this morning. Did two red button reboots, two 15 second unplugs, and two remote refreshes via the ATT website have not worked. Receiver is a many years old HR-34. Just got off a 20 minute phone call to ATT support. He tried several refreshes with no luck. Confirmed no outages in Arizona. If not resolved on their end within 24 hours (review software etc.??) will send a technician. Anyone have advice on which receiver to get if it needs replacing? Have a 4k tv connected to it via HDMI, an HD tv connected via audio/video cables, and need to add a remote wireless tv. Is the HR-54 the best choice? Thanks for any help.