Just upgraded my 3 october Jupiter with this update and none is working.. Redlight is on and I can't access the web interface anymore.
That's not good.
A test upgrade on one unit is always advisable where possible (Not very helpful I know).
Try a hard reset (press reset button 5 times, wait 5 seconds, press reset button 5 times) - might overwrite with factory settings.
Otherwise you may have to flash with SD image (Recovery File) >
https://www.kncminer.com/pages/troubleshooting