Hi, I have a Samba 3.0.4 server setup as an NT domain serving some XP Pro Workstations. The users can login and use the server but some of the drives seem to disconnect at times. I can still brows the files from "My Computer" when it look like it disconnects put programs are complaining. The XP Workstation are loggin this error in the even viewer: Event ID: 3036 Source: MRxSmb The redirector detected a security signature mismatch. The connection has been disconnected. Has anyone seen this error. I have tried searching google and the list but nothing. Any ideas to try??? ---- Kirk