A family of Microsoft relational database management systems designed for ease of use.
Are you using a DFS Namespace, or other means of redirecting from the actual database location to an aliased path/filename?
DFS. On the mapped drive where the Access files exist, DFS tab, I see a server specified in the referral list. Shows "Active". I don't manage that, but on that server, neither of the DFS roles are turned on, but it shows up under the DFS tab when I view the properties of the mapped drive.