Hi,I am using D-Link Dsl 2520u modem and dlink DI-524 router alond with that in my BSNL broadband connection...I am not being able to access facebook on one of my windows pc and macbook,it displays..waiting for facebook at the bottom of the page..and after that error in loading....on rest of the pc or laptops its works fine..rest every site is working fine too...i tried pinging facebook.com in command prompt and it gets the reply...but then in browser its not opening...another thing...if i install any new browser for the first time facebook will run in it...like if i reset safari everytime it opens and login happens but as soon as i click on any notification or message...it stops working again....my modem has one direct lan port and if i connect tht pc and lappy directly frm tht port..facebook works fine..PLEASE PLEASE HELP..I HAVE TRIED EVERYTHING...RESETTING...FORMATTING...CHANGING THE MTU..NOTHING WORKS.