Using Netflix in Windows Media Center is a convenient way of accessing the service on your computer without launching a Web browser. However, you must add Windows Media Center to the list of programs allowed to communicate through Windows Firewall to view Netflix content. This is necessary because the Netflix add-on connects to the Internet via Windows Media Center. Adding the Windows Media Center program as an exception in Windows Firewall will prevent the utility from blocking Netflix communication. Tips Warnings Writer Bio

How to Get the Firewall to Accept Netflix  7 Steps  - 74