DFS-R: Servers '{0}' and '{1}' belonging to the replication group '{2}' must have two-way connections between them

Updated: April 27, 2010

Applies To: Windows Server 2008 R2, Windows Server 2012

This topic is intended to address a specific issue identified by a Best Practices Analyzer scan. You should apply the information in this topic only to computers that have had the File Services Best Practices Analyzer run against them and are experiencing the issue addressed by this topic. For more information about best practices and scans, seeBest Practices Analyzer.

Operating System

Windows Server 2008 R2


File Services






The replication topology for the replication group '{2}' that this server belongs to is not fully connected. The DFS Replication protocol depends on the presence of enabled two-way connections between any two members that replicate each other.


The lack of any one of these connections can cause severe, permanent backlogs on one of the members and can also interfere with the ability of DFS Replication to resolve replication conflicts.


Repair the disconnected topology by using DFS Management to create a connection, enable or disable replication, or enable or disable replication on a specific member.

To repair a disconnected topology, use the following procedure:

To repair a disconnected topology

  1. Click Start, point to Administrative Tools, and then click DFS Management.

  2. In the console tree, under the Replication node, click the replication group that contains the disconnected topology.

  3. In the results pane, on the Connections tab, click View disconnected members in the error message at the top of the tab to open the Disconnected Topology dialog box.

  4. To view disconnected members, click a replicated folder in the Replicated folder list, and then expand the Disconnected Members. Make a note of the disconnected members in this list.

  5. Click Close.

  6. Repair the topology by performing any of the following procedures, as appropriate:


In some instances you might have to remove disconnected members and then add them back to the replication group to repair a disconnected topology.