I am trying to use hotspot shield on my MacBook. It changes my IP and encrypts my information...but it does unblock any services. I am using OPEN DNS on my network and I have it blocking certain sites. When I try to access one of those sites with hotspot shield, it says open dns blocks this page, please contact your network admin (which is me). I am trying to figure out why it isn't working. P.S I am having the same problem on my iMac! Thanks, Michael!