Thread: Microsoft ISATAP appear with yellow mark as well as a error message

On a Windows Vista-based computer or on a Windows Server 2008-based computer, the Microsoft ISATAP adapter appears with a yellow exclamation mark and you receive an error message

You can securely pay no attention to this error message. This error message does not specify a problem with the adapter. The adapter will carry on working properly.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

The Microsoft ISATAP device Inter Site Automatic Tunneling Address Protocol is used to assist enterprises changeover to an IPv6 infrastructure. The ISATAP adapter summarizes IPv6 packets by means of an IPv4 header. This functionality allows the user to move IPv6 traffic over an IPv4 infrastructure. This advance lets organizations slowly transfer to an IPv6 infrastructure without having to use too much time as well as financial income to change to the newest infrastructure.