PR4100 continuously reboots

After firmware update 5.27.157 my PR4100 continuously reboots. I’ve tried the “40-second reset” but it changes nothing. The PR boots up, goes through its start procedure then says, “system rebooting” and then the whole rebooting process starts over again.

Is there any way to fix this thing?

Hi @SeanPS
Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting: