I am facing problems with BSNL during browsing, I have to Refresh the page 4-5 times to open.So I want to fix this- I want to switch to Open DNS. Just changing the IPv4 properties by entering the open DNS servers address in "Use the following DNS servers" is enough???Open DNS servers addresses:208.67.222.222 208.67.220.220But when I open the modem by 192.168.1.1 there it is still the default DNS serversNS Primary 218.248.255.147 DNS Secondary 218.248.255.146Note: I use Wireless (WiFi).Please tell me actual procedure.Thanks!!!