Q. When you attempt to connect to a Remote Access Server, you receive 'The Local Security Authority cannot be contacted (Error 0x80090304)' or 'Error 0x80090022: Providers could not perform the action since the context was acquired as silent'?

Microsoft Knowledge Base Article 813550 contains the following description:

When a client tries to connect to a remote access server, the client may receive one or both of the following error messages: The Local Security Authority cannot be contacted (Error 0x80090304). For customized troubleshooting information for this...