"dns_probe_finished_nxdomain" error code that is generated is beacause of some discrepencies in the dns of your system....It's a user end problem and can be resolved very easily. Just follow the steps given in this article : http://errorcodespro.com/error-code-dns_probe_finished_nxdomain/

Mail I got recently when I got problem againHi,Thank you for contacting Microsoft Community. Are you facing same issue with Internet explorer ? The DNS lookup failed error is network issue and not an issue with Gmail.com. I suggest you to refer to the responses Marked as answer in the following thread which discusses a similar issue. Windows 7 DNS server not responding

http://www.deskdecode.com/dns_probe_finished_nxdomain/

Check if this helps in resolving the issue. Hope this information is helpful. Please reply with the results and if you need further assistance or have any other queries regarding Windows, we are here to help you. Regards,Anusha