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.

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