Can't connect second user using ReadyNAS Remote

I seem to be having this a similar problem...

From ReadyNAS Frontview I click on Services -> Installed Add-ons, and verify that the "ReadyNAS Remote" add-on has been installed and is turned on (green dot in the upper-right).

I click on the "Manage ReadyNAS Remote button and a "Remote Access" window pops up listing the "Found" and "Allowed" User Names.  I have three usernames under the "Allowed" column, two work and one does not.

I have created and am able to log into the http://remote.readynas.com profile for all three "Allowed" usernames.

I have created permissions profiles (User & Group Accounts) for all three "Allowed" usernames, granting access to shares to each.

I am able to successfully log into the ReadyNAS Remote client software using each of the three usernames, but only two of the usernames result in a Device showing up in the window.  

*username1* = Device is online "NAS_01"

*username2* = Device is online "NAS_01"

*username3* = No Devices Found - "0 Online | 0 Offline"

I can access the appropriate shares for each username when logging into the ReadyNAS Duo locally, on the LAN.

The issue I'm running into...and which I suspect you might be experiencing too... is that the UserID (*username3*) does not appear to be linked to the device.

Is there a step I've missed that is preventing *username3* from registering access to the Device?  From what I can tell, the only way to link a Device to a UserID is to: 

1.) Create a profile at remote.readynas.com, and add UserID *username3* (not the real username, of course)

2.) Add the UserID to the "Allowed" column on the Remote Access control list

P.S. - I just noticed...the only difference I can see between the three usernames is the two that work have strictly alpha-characters, no numerals or punctuation.  The username that does not work has a "." in it.

For example:  

*username1* = jsmith - WORKS

*username2* = rogersmith - WORKS

*username3* = dan.smith - DOES NOT WORK, no devices linked to this username

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