Problem restarting DL2100 after power outage


I have DL2100 4TB in 2x2TB RAID config. Power at my house went out yesterday. I have regular power strip surge protector, but decided to unplug PSU while waiting for power to restore, in case it came on dirty (it may have gone off dirty as house lights flashed a bit). Once my house power was restored, I plugged PSU in power strip and plugged power cord into rear of DL2100. It lit up immediately (blue power light flashing, discs solid blue) without pushing the power button, but fan stayed on and blue power light flashing about once per 2 seconds. Fan on high (loud) continuously. After about 4 to 5 minutes (time varies, DL2100 powers itself down (all lights and fan off) and then powers up again all by itself and repeats over and over. I left it for a couple of hours doing this, to no avail. Tried with and without network connected and with and without discs in bay… no luck and same symptoms. Thank you in advance for any suggestions.


I have a DL2100. too as well as the complete user manual for it which I downloaded from WD Support. Every owner of a WD NAS needs the manual; do you?

It does not sound like you know how to operate your DL2199 well enough or else you would have clicked on the Reboot button in dashboard menu, or reset device back to System Only, or if all else fais use the 40 second reboot. All these suggestions are in the manual.


Thanks mike27oct - I previously downloaded the 127-page manual. I have run this device successfully for a couple of years with no problems until this power outage. Apart from the 40-sec reset, the other two suggestions you make would be good if I had access to the dashboard, but as I tried to say (but not very well) the device is not rebooting … it never gets past flashing blue light before it powers down and then repeats. So, I have no access to the dashboard and no connection at all. If the 40-sec reset is the only suggestion I get, then I’ll try that and post update afterwards.


OK, but put the thing back togher with network connected and disks in their bays. If 50 sec reset works, great, if not contact WD Support. I suggest you do the following. When all together, turn off unit with the front panel switch and leave unit off for five + minutes, Then turn on with power switch, if it boots fine, great. If not then try the 40 second reset. Don’t select any reset that will remove your data; reset system files only. If all this fails, contact WD Support. Your unit may have been seriously damaged by power failure. Good luck.


Turned off using front panel switch, but it just restarts on its own after about 4 seconds, so can’t leave it powered down. Tried unplugging the cord during the 4 sec power down, waited 5 mins, then reconnected cord, but it starts up as soon as the cord is connected, before pushing power button, then goes into its cycle of powering itself down, restarting… repeat. Tried 40 sec reset… the only difference now is that when I power down using front button, it stays powered down and does not restart on its own. Tried waiting 5 mins again and started from front panel… goes into power recycling again.
I contacted WD support and they have Advance RMA’ed a PR2100 to me. Followed the instructions on this link: and now it all boots up ok (new PR2100 enclosure with my old Red drives). Problem is, the new enclosure does not have my users. Windows explorer sees the device, but there are no folders or data. Definitely did not delete it. I guess I need to reconfigure users, passwords and everything, but the article doesn’t provide instructions for that following replacement of enclosure.


Yep, you need to set up from scratch again, and for that you need the user manual


I have the manual… it says nothing about RAID roaming. From what I have read, My Cloud supports moving drives from one enclosure to another, but nowhere can I find instructions for setting up a new enclosure to access the data from the moved drives.


I suggest you contact WD Support.


I have the exact same problem. I haven’t got any support from WD yet. My unit is used in production so I want quick support to resolve the issue. I am really hoping that it is possible to use the discs with a replacement unit.

Disappointed with their support so far



WD support supplied a replacement. The drives booted up fine there.