I am getting DNS error on google webmaster tools. And even after testing with this http://dnscheck.pingdom.com/?domain=ansoftsys.com&timestamp=1372108107&view=1 Name Server detailsHere is a screenshot my DNS management page  How to solve this issue?And my DNS error image is below generated from this link http://dnscheck.pingdom.com/?domain=ansoftsys.com&timestamp=1372108107&view=1
DNS name server error
google search console;dns
It's a little hard to view the details of the images...When I ran a DNS report here:  DNS Health CheckThat's indicating that the nameservers are missing A records, the IP address (50.23.136.173) of the nameserver dns1.bigrock.in is having intermittent connection timeouts too,  the SOA EXPIRE value is very low, and there are problems with your mail servers...It appears to be a combination of DNS setting issues, and possibly DNS service issues as well. You should contact their tech support ASAP and have them run some external DNS checks, like the one above. Note that any DNS changes will take approximately 24-72 to propagate through the Internet.