This issue occurs because the DNS server cannot resolve the Canonical Name (CNAME) records in signed zones.Note The extension of the DNSSEC is Domain Name System Security Extensions.
Resolution
To resolve this issue, install the December 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
See the terminology that Microsoft uses to describe software updates.
