After a power failure during the night, the Synology NAS didn’t reboot properly. The blue led (power) blinking indefinitely.

DS215j

Recovery steps

1. Power off the NAS and remove all hard drives

2. Boot the NAS and wait for it to complain about missing hard drives (blinking status LED)

   • The blue led should stop blinking.

   • The NAS should beep indicating a ready step.

   • It has boot with DHCP and has a different IP.
3. Connect to the NAS via a browser as you would normally do it (you might have to find out the IP using your router or use the Synology Assistant)

• It should complain about missing hard drives (duh!)

1. power off (press 4s+ power button)

2. reconnect drive in same order

3. Boot

Hoppefully after 1min it was able to boot / everything seams ok. data and config was kept.