@Murdaug123 The Blue Light Flashing is the file system check running on your device.
It can run for longer than 55 hours depending on the drive capacity, amount of content and the state of the file system (IE: how much checking and repair is needed).
On another note, we’ve made available a BETA release of 2.31.195 that resolves the reboot issue mentioned in this thread.
My Cloud PR2100/PR4100 2.31.195 BETA Firmware for Reboot Issue
