Quote Originally Posted by FN-GM View Post
Anyone got any ideas please?

Is this from an authenticated client, or a local account? Reason I ask is my work PC account is a local, non-domain account, so when I access my namespace I have to authenticate with my network credentials. Being DFS, it may then ask me to authenticate again at any point while browsing the shares as it decides to swap server, until I'm auth'd on both servers. These can occasionally play up, leaving me locked out and I have to reset the authentication by logging off and back on.

If I log in with a network account, I don't get this behaviour. Have you tested it on a network account?