Running the VCS Configuration Wizard (VCW) to enable single sign on fails with error -2147023174

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In Storage Foundation for Windows High Availability (SFW HA) it is possible to enable single sign on to authenticate users agains Active Directory.  This wizard may fail with the error shown here. 

For details on configuring single sign on, refer to the SFW HA Administrators Guide.

Error Message

Cannot connect to Live system: Also the Secure cluster wizard fails to connect to the root broker and the error -2147023174

Researching the err code (-2147023174)

Using the scientific Calculator, enter the above number as decimal negative number, and convert to hex.  From the output, drop the leading FFFF FFFF, leaving the error code which can be translated via the Microsoft "err" utility.

C:\Err>err 800706ba
# as an HRESULT: Severity: FAILURE (1), Facility: 0x7, Code 0x6ba
# for hex 0x6ba / decimal 1722 :
# The RPC server is unavailable.

Error 800706BA is a standard Windows error. Itrror. It refers to: RPC_S_SERVER_UNAVAILABLE
The RPC server is unavailable (Windows Event ID 1722).


The RPC calls can fail if the  Nodes are not able to communicate with the Root broker.  An Example would  be of the nodes are on a Secure network (DMZ )and the root broker  is a alternate network.


Place a second root broker on the DMZ network, this will allow the nodes in the DMZ to connect to a root broker and allow the cluster wizard to complete successfully.



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