No network provider accepted the given network path

Switched our logon script shared folder to a DFS shared folder last night. One user using an XP client complained that the logon script is not running for him. When I tried to access the DFS namespace (e.g. \\mydomain.com), I received the following error.

No network provider accepted the given network path

Accessing the shared folder via the server name (e.g. \\server\netlogon) works well.

Here are what I did trying to fix this issue.

• Stop the Windows Firewall – does not solve it.
• Run sfc /scannow but found not problem with system files so not fix.
• Repair the TCP/IP stack using netsh – no working either.
• Uninstall/Re-install Client for Microsoft Networks – no luck as well.
• Found the TCP/IP NetBIOS Helper service was stopped and disabled. Enabled the service and start it. This actually solved the issue.

User is happy that the logon script is now working for him.