Finally got her working… and recorded two local earthquakes in less than 24 hours! (I’m in southern California)
Basically, what I did was return the Shake to its original configuration by reformatting the SD card and reinstalling the OS. For setup I followed the quick start guide.
I know my Shake stopped working because it could not connect with the internet time service but I’m not sure of the exact reason. Guessing it may be that my isp’s modem/router did not like the Shake having a static IP address or a different DNS address. Whatever the cause, the Shake now works great and I’m not going to touch it.
Jon