Solved
dnssec
does the cox dns servers support dnssec
If you are worried about dnssec I'd suggest using the google opendns servers of 8.8.8.8 and 8.8.4.4
https://developers.google.com/speed/public-dns/docs/securityYou can also use the Resolve-DnsName powershell commandlet to test DNSSec:
https://technet.microsoft.com/library/jj590781.aspxhttps://technet.microsoft.com/en-us/library/jj200221(v=ws.11).aspx
