NetDiag.exe Entry Point no Found error

I am getting an Event ID 1054 Source Userenv (Windows cannot obtain the domain controller name for your computer network. Group Policy processing aborted.)

When I ran the netdiag.exe command I got the following message:

Entry Point Not Found : The procedure entry point DnsNetworkInformation_CreateFromFAZ could not be located in the dynamic link library DNSAPI.dll.

Any ideas as to what this means?

Thanks
Angie