Cannot Access readyNAS shares when connecting from a domain joined computer

Greetings!

I'm tearing my hair out trying to figure this out.  Maybe it just can't be done.

I am on a Windows 7 computer joined to a Windows 2003 domain.  I am logged into the domain.  My readyNAS 202 is setup to use a "local database" for permissions and access.  I have created several shares on the NAS, leaving the default permissions.

I can see the readyNAS if I use the console via HTTP to the admin page.  Everything works fine.

However, when I try to connect to the shares from "Network" on "My Computer", I can't get in now matter what combination of creditials I use.  The password box is pre-populated with my domain name, and expects me to connect from that domain.  I can't.

I use a slash in front to specify that I'm not using a domain "\admin" and enter my password, and it comes back "Incorrect user name or password".  I tried using "\workgroup\admin", and that doesn't work either.  I tried created a user on the readyNAS and tried to use those credentials.  No luck,

However, if I go to another machine on the network, but not joined to a domain, I can get in no problem!

What gives?  Is it that I can't connect to it if I'm joined to a domain?  

I don't want to use Active Directory on the readyNAS because we are switching over to a new Server on a different AD controller.

Any help or insight would be greatly appreciated.

Thanks!