Operation failed with message: Error 0x6f7 when adding a server to a database availability group in Exchange Server

Original KB number:  2032601


When you add the first or an additional server to a database availability group (DAG), the error message occurs:

A Server Side database availability group Administrative Operation failed.
Error the Operation failed with message: Error 0x6f7 (The Stub Received Bad Data)


Cluster creating process checks all the valid IP addresses on network process and errors occur when invalid entry is found on the network card.

A search for IP Addresses : __in string IPAddresses[], : IP addresses of the cluster.

If network cards are found without default gateways on the node, the following error is logged in DAG Task logs:

Connecting to server 'Server.Contoso.com' via WMI...
[Fetching the network adapters and ignoring the ones without default gateways.
Server.contoso.com has an address: default gateway(s)=====<none> [invalid] ---Private network
Server.Contoso.com has an address: default gateway(s)=======<none> [invalid] ---Public network


Configure one NIC in the cluster with a default gateway. Then configure static routes on the remaining NICs to help communication.


You should not have more than one default gateway on the server as per the following:
Plan for high availability and site resilience

More information

Following error is logged in the DAG Tasks Log:

The operation wasn't successful because an error was encountered. You may find more details in log file "C:\ExchangeSetupLogs\DagTasks\dagtask_<Exchange Server>_add-databaseavailabiltygroupserver.log".
 WriteError! Exception = Microsoft.Exchange.Cluster.Replay.DagTaskOperationFailedException: A server-side database availability group administrative operation failed. Error: The operation failed with message: Error 0x6f7 (The stub received bad data) from cli_RpccCreateCluster ---> Microsoft.Exchange.Rpc.RpcException: Error 0x6f7 (The stub received bad data) from cli_RpccCreateCluster
   at ThrowRpcException(Int32 rpcStatus, String message)
   at Microsoft.Exchange.Rpc.RpcClientBase.ThrowRpcException(Int32 rpcStatus, String routineName)
   at Microsoft.Exchange.Rpc.Cluster.ReplayRpcClient.RpccCreateCluster(String clusterName, String firstNodeName, String[] ipAddresses, UInt32[] rgNetMasks, String& verboseLog)
   at Microsoft.Exchange.Cluster.Replay.ReplayRpcClientWrapper.<>c__DisplayClass1e.<RunCreateCluster>b__1c()
   at Microsoft.Exchange.Cluster.Replay.ReplayRpcClientWrapper.<>c__DisplayClass32.<RunRpcOperationDbName>b__30()
   at Microsoft.Exchange.Data.Storage.Cluster.HaRpcExceptionWrapperBase`2.ClientRetryableOperation(String serverName, RpcClientOperation rpcOperation)
--- End of inner exception stack trace ---