DFS: Users getting access denied.

I've got a DFS namespace with two file servers.  If a regular user tries to access \\domain.local\dfs\folder they get an access denied.  If an administrator tries to access, it works fine.   I've confirmed that the end-users have full access to the share directly on both servers.  I've also used icacls to examine the permissions on the DFS folder shares and users should have full access to the shares.

I read on one post that XP has issues if the DFS servers have IPV6, so I've disabled that on the servers, but still have the same issues.

Any suggestions would be appreciated.