When you use BSNL Broadband internet connection for browsing then commonly happens this issue .Everything looking fine but your website is not loading with “DNS” issue. Generally it found in windows networks. Easily Solve this issue by open DNS.
Steps for For solution
1.click on network icon placed in windows task bar then a popup window will be open.
2.In popup window click on properties then local Area Network connection properties window will be open
3.Click on IP from the list and take properties
4.Then IP properties window will be open and select the option
“use the following DNS server addresses
5. Give the following values
Prefered DNS server : 8:8:8:8
Alternate DNS server :8:8:4:4