I am using the SXT-LTE located a remote machinery to dial in to the office SSTP server. For each client is a defined interface (in PPP) assigned to the user name used in secrets. Most of the time it works fine, but randomly the the server creates a dynamic interface instead of connected to the predefined interface if a connection is interrupted and the client dials in again. As there is no correct route assigned to the dynamic interface it is not possible to connect to the client until we delete the dynamic interface. Once the dynamic interface is deleted the client immediately reconnects to the correct static interface.
Is this a know problem and does anyone know a solution to this?