Hello everyone!

I just got a Buffalo Linkstation NAS, which has user/group security features. I have set up a dynamic DNS and routed port 445 to the correct LAN IP. Some shares on the NAS are protected by username/password, some are not.

All cases below refer to the the SMB protocol.

1. When using the LAN IP to connect to the device, all connections succeed.

2. When using the WAN IP or dynamic DNS to connect, all connections to non-protected shares succeed.

3. When using the WAN IP or dynamic DNS to connect, connections to protected shares fail in Windows XP and Mac OS 10.4, and succeed Mac OS 10.5.

Any troubleshooting ideas? Thanks!