I faced the same issue, setting ip to static to 192.168.0.52. My Netgear is 192.168.0.51.
The NAS became not reachable and no I was expecting the worst.
Did a reset (10 seconds) and the NAS was not even showing up in the Netgear (Connected Devices List).
see link :
I removed the disks (still don’t know whether this is necessary though) and hooked it back on.
I suggest to download to WD program “WD Discovery”, which comes in handy for searching your NAS.
Basically I hooked the NAS directly to my PC and changed my PC ip-address in the same range of the NAS. It took a while (might be up to 3 minutes) when “WD Discovery” found it, showing an IP address which was not familiar to me. I connected to the given IP address and was able to login the admin screen.
Once logged in, it will ask you to put the disks back in, so I did and all looked fine.
Reset is applicable for the Device Name, IP Settings, and Administrator Password of a WD My Cloud, WD My Cloud Mirror, WD My Cloud EX2, or WD My Cloud EX4 Personal Cloud drive back to factory default.
Note that at factory settings the RAID is set to RAID_1, it is not clear whether this setting is put back with a reset when being different. I guess most people won’t have this changed.
Hope this helps all of you of preventing a RMA process.
Sad not to find any info on this from WD Support itself.
PS : This NAS is over rated big time, it is my last WD product.