[KBA-01342] Expansion server does not connect to Directory - Security Center 5.2 - 5.7

Security Center 5.2 - 5.7

[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.

More Information

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