The Network Policy Server (NPS) "%1" could not be added to the central connection authorization policy. The following error ...

The Network Policy Server (NPS) "%1" could not be added to the central connection authorization policy. The following error occurred: "%2". To resolve this issue, ensure that you have typed the name of the Network Policy Server (NPS) correctly and that the NPS exists on the network, and then try again. If the problem persists, then identify and any resolve network connectivity issues.