IPv6 isn't running yet i thought so why is everyone going on about IPv6, your router doesn't support IPv6 infact we are a long way from it? You may have you ip address for v6 but it doesn't make a difference it's not running.
There are currently many Windows services using IPv6 on the LAN, Homegroups being one of those that requires IPv6 in order to work at all. And yes, most every single router made in the last 10 years does in fact support the IPv6 protocol.
Here is how you would fix this problem to get Homegroups working again. Been there done that.
http://www.sevenforums.com/network-sharing/116810-ipv6.html#post1003900
As for IPv6, here is some info about why it should be not disabled and what exactly it's used for since it's not yet being used to access the internet.
The Argument against Disabling IPv6.
It is unfortunate that some organizations disable IPv6 on their computers running Windows Vista or Windows Server 2008, where it is installed and enabled by default. Many disable IPv6-based on the assumption that they are not running any applications or services that use it. Others might disable it because of a misperception that having both IPv4 and IPv6 enabled effectively doubles their DNS and Web traffic. This is not true.
From Microsoft's perspective, IPv6 is a mandatory part of the Windows operating system and it is enabled and included in standard Windows service and application testing during the operating system development process. Because Windows was designed specifically with IPv6 present, Microsoft does not perform any testing to determine the effects of disabling IPv6. If IPv6 is disabled on Windows Vista, Windows Server 2008, or later versions, some components will not function. Moreover, applications that you might not think are using IPv6—such as Remote Assistance, HomeGroup, DirectAccess, and Windows Mail—could be.
Therefore, Microsoft recommends that you leave IPv6 enabled, even if you do not have an IPv6-enabled network, either native or tunneled. By leaving IPv6 enabled, you do not disable IPv6-only applications and services (for example, HomeGroup in Windows 7 and DirectAccess in Windows 7 and Windows Server 2008 R2 are IPv6-only) and your hosts can take advantage of IPv6-enhanced connectivity.
Read more.
http://technet.microsoft.com/en-us/m....cableguy.aspx
Still think that IPv6 isn't used for anything?
