Hello,
I am experiencing very low write speeds and slow reading speeds, for example looking at larger photoshop files in Finder preview.
Please refer to the screenshots attached. I am using a FritzBox 6591 Cable UPnP activatd to which the WD is attached at 1Gbit.
At this stage, it only makes sense to me to use the WD NAS as a Time Machine device, especially when handling files of several hundred mb.