This Is One Option To Unblock Websites. Follow The Instructions Below:
1) Go To The "Start Menu" And Go To "Run..." And Type In "Cmd." Or You Can Just Go To "All Programs" And Then "Accessories" And Click "Command Prompt."
2) Type In "Ping" And Then Whatever Site You Want To Be Unblocked. If You Try YouTube, It Won't Work Because It's Owned By Google Inc. And Any IP Address Will Lead You To
http://www.google.com3) If The World "Repeat" Or "Reply" 'Repeats' At Least Four Times, That Means The IP Address That It Gives You Will Work. So, You Will Get A Code Looking 'Like' This: [127.0.0.1] Copy And Paste That Code Or Type It In The URL Bar And Press "Enter."
If It Works, Good. If Not, Post A Forum About The Problem And I Can Solve It. If Not, Ask Someone Else That Works On The Forums.