Resolve Synergize Automation Error: -2147023071, 80070721 A security package specific error occurred

Use this article to resolve automation error (-2147023071, 80070721) A security package specific error occurred when launching a Synergize client application (Synergize Explorer, Synergize Indexing).

  • An application calls CreateObject to activate a COM+ component or a DCOM server component which is running on a remote machine.

  • The call to the CreateObject fails with the error 80070721 which translates to "A security package specific error occurred."

As a workaround to resolve this error, register the following SPNs by running these on the domain server:

  1. setspn -A Synergize/<Synergize Server Name> <Domain Name>\<Synergize Service Account>

  2. setspn -A Synergize/<Synergize Server FQDN> <Domain Name>\<Synergize Service Account>

FQDN =Fully Qualified Domain Name (ApplicationServer.MyDomain.com)
Setspn.exe is included in the Microsoft Windows Server Support Tools.