Thank you for your reply! I did that at first when troubleshooting, even resorted to a full shutdown but nothing changed so I stopped doing it, I’ll try again and report back though.
EDIT 1: Just a quick note, I found a similar problem here on this thread:
http://community.wd.com/t5/WD-My-Cloud/Unable-to-get-login-on-cloud-for-new-user/td-p/635615
except his issue seems to be connecting with other users generally as opposed to it being confined to the web UI,
regardless though the solutions on that thread do not work