Turn off IDN encoding
Specifies whether the DNS client should convert internationalized domain names (IDNs) to Punycode when the computer is on non-domain networks with no WINS servers configured.
If this policy setting is enabled, IDNs are not converted to Punycode.
If this policy setting is disabled, or if this policy setting is not configured, IDNs are converted to Punycode when the computer is on non-domain networks with no WINS servers configured.
At least Windows Server 2012, Windows 8 or Windows RT
Not Configured - No registry values are specified.
Disabled - Any values that would be created by the policy in the registry are deleted.
Enabled - Adding, modifying or delete values in the registry.
User Interface can be found in the Group Policy.
Please navigate to Computer Configuration - Policies - Administrative Templates - Network - DNS Client folder.