I had a working install on a PogoPlug V4. It's been running about two weeks. Today, I rebooted it.
It came back onto the network, but ssh was not found. The light just flashed green. I pulled the power cord several times and each time it came back up and just flashed green.
I didn't have anything worth saving on the USB stick, so I reformatted it to FAT32 and added the 'revert' folder at the root level. I plugged it back in, and powered it up. Now I have a flashing green light and no network.
Any ideas?