What are the Customer Experience Improvement Program protocol and configuration requirements?
By default, CEIP uses the WinHTTP protocol and port 80 to deliver information from your Windows Server 2008 system. If your system’s configuration prevents or blocks your system from doing a POST out using port 80, CEIP will not send your information to Microsoft. In addition, CEIP subscribes to the Windows Server 2008 phone home settings\group policy object. In Group Policy settings, if you disable phone home technologies on Windows Server 2008, you will automatically disable CEIP.