Specify corporate DNS probe host name
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKLM
Software\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator\CorporateConnectivity Options
DnsProbeHost text Description
This policy setting enables you to specify the host name of a computer known to be on the corporate network. Successful resolution of this host name to the expected address indicates corporate connectivity.