[KBA-01342] Expansion server does not connect to Directory
This article explains why an expansion server fails to connect to the Security Center Directory it is configured to connect to.
Applies to: Security Center 5.2 - 5.7
In the Server Admin on an expansion server, a red Connection Failed message is shown under Main server connection.
In the Microsoft Event Viewer, the following error messages are displayed:
Unable to establish a connection with server 10.x.x.x:yyyy on port yyyy. The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.
This error usually occurs when a dependency service is disabled, possibly due to a group policy or due to other external factors.
To fix this issue, run services.msc in Windows and enable the following services:
- Network List Service
- Network Location Awareness