I have two DNS-320's on two different networks at two different locations. They both have the same problem.
Both have two users - User A and User B. There are 6 shares on each. User A is given read/write access to the first 3 shares and denied access to the last 3. User B has read/write to the second three shares and denied access to the first 3.
User A works as expected - after authenticating the user can access the shares they should and is denied access to the ones not allowed. User B however cannot access the shares that should be allowed. An access denied message is displayed. This is after User B is challenged for credentials and the default credentials changed to specify a different account - User B.
After looking at the log, I can see the CIFS authentication attempt, but it is for the wrong user. Doesn't matter how many times I enter User B and the password when challenged, it's always User A that is attempting to authenticate which of course fails because User A is denied access to User B's shares.
I've tried this from a variety of PC's (all workgroup Windows 7) with no difference. Altering the domain has no effect. I'm thinking this is more a Windows problem than the NAS, but has anyone else experienced this?