My VPN server is not responding to outside connection attempts. I check Routing and Remote Access on the server and it shows the service as started. However, I cannot change or stop the service, as every time I try I get an Error 5: Access is Denied message. If I go into Routing and Remote Access under Administrative Tools, my server is listed with a red stop sign icon. Again, trying to view or change anything results in Access Denied. It asks for credentials, I enter the domain administrator account credentials and it says I don't have sufficient privileges to view the properties or change the service. If I try to log in with my own user account (which is in the Domain Admins group) I get the error "The credentials you supplied conflict with an existing set of credentials." What's going on here?