Some availability replicas are disconnected

THIS TOPIC APPLIES TO: yesSQL ServernoAzure SQL DatabasenoAzure SQL Data Warehouse noParallel Data Warehouse


Policy Name Availability Replicas Connection State
Issue Some availability replicas are disconnected.
Category Warning
Facet Availability group


This policy rolls up the connection state of all availability replicas and checks for any availability replicas that are DISCONENCTED. The policy is in an unhealthy state when any availability replica is DISCONNECTED. The policy is otherwise in a healthy state.


For this release of SQL Server 2017, information about possible causes and solutions is located at Some availability replicas are disconnected on the TechNet Wiki.

Possible Causes

In this availability group, at least one secondary replica is not connected to the primary replica. The connected state is DISCONNECTED.

Possible Solution

Use the availability replica policy state to find the availability replica that is DISCONNECTED, and then resolve the issue at the availability replica.

See Also

Overview of Always On Availability Groups (SQL Server)
Use the Always On Dashboard (SQL Server Management Studio)