Last night my neighborhood had a power outage for a couple of minutes. When restored, my PVR started flashing "8888" for a few minutes and then turned itself off and then on again still flashing "8888". It's been doing this for the last 12 hours. I unplugged the PVR for at least 30 seconds and plugged it back in. Same results! Still keeps flashing "8888" turning itself on and off, apparently trying to reconnect. Any other suggestions?