Ok, I am having same problem.
wdmycloud/UI is a waste of time (it used to work, not sure what happend? Firmware update?)
Accessing via IP address does get me in, but it’s SLOW AS MOLASSES! No, wait. SLOWER! The WD PC Smartware backup software stopped backing up for some reason a few months ago (as I’ve just discovered) and I am currently trying to figure out why, but being an impatient person, I simply can’t wait 2 to 5 minutes for every page to update / refresh.
Right now I’m on the “check for firmware update” page and it’s been saying “retrieving” for over 5 minutes now. I’m using Windows 8, Chrome.
Does anyone know of a more reliable NAS device for backing up PC’s as it appears too many people (including myself) are having issues with the WD cloud devices. I’ve even turned off Cloud and DLNA services (this took about 10 minutes) and it’s still not working. Oh, and yes I’ve rebooted it. Many times.