Question:

When I try to connect to a different Site Server from within the Administrator Console I get a “Database Connection Wizard” error dialog box which states:

The Site Server cannot be contacted or trying to connect to an incompatible Site Server version. Please enter a new Site Server Name.

If I click the “Details >>” button the dialog states:
The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

Answer:

Make sure on the Windows Firewall that the following two rules have been created and enabled:

  • Remote Administration (RPC)
  • Remote Administration (RPC-EPMAP)