MyCloud Unexpected error please try again

I have users that cannot access the EX4100 remotely, they get the Unexpected error occurred. Please try again. I have rebooted it, rebooted all the network equipment and no luck. I am the admin and I get the same error when trying to login remotely. I am able to connect via a mapped drive but not remotely. I have 1 user who can access and the others cannot. I have cleared cache tried both Chrome and Firefox and still get the error. Any help would be appreciated.

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting:
https://support-en.wd.com/app/ask