Windows Server 2012 IPV6 is not working

Hello all,

I have a fresh install of Windows Server 2012 Datacenter installed. It appears that IPV6 is not working. This has been the case with it being a fresh install, and after all available updates have been applied. And i have reinstalled twice with the same results.

A little background, so that you know my situation better...


I'm one of the few lucky individuals to have had Comcast turn on ipv6 in my city.
I currently have 4 Windows 7 machines on the network. Each one is receiving a fully functional IPV6 config from my Netgear R6300 router. They can access any IPV6 based website i try. (ipv6.google.com being an example) I just can't ping any of them from the outside... (I'm guessing my router doesn't ACTUALLY fully support ipv6)

Knowing all of this, i felt utterly frustrated when Windows Server 2012 not only cannot receive a valid ipv6 config from the router, it WILL NOT FUNCTION AT ALL on the LOCAL network with IPV6. I have confirmed this, when pinging it from another system, or attempting remote desktop connections by using the computer name. Windows 7 will default to trying to use the ipv6 address instead of the ipv4 address, and will FAIL. I'm currently stuck having to use the ipv4 address to connect to it.

I have tried reinstalling the ethernet adapter drivers, reseting the ipv6 stack(which gives an access denied error) I've even tried changing settings within powershell, which seems to ignore the command.

So far what few results i've found searching on this issue have only addressed Windows 8 issues that are cleared up by uninstalling anti-virus software. As this is a clean install of Server 2012, with NOTHING installed on it... i'm tearing my hair out.

Here is a snippet of the current ipconfig /all results. These results have never changed.

Ethernet adapter Ethernet:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet
   Physical Address. . . . . . . . . : 00-23-7D-9B-FE-C0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2601:d:8200:87::100f(Preferred)
   Lease Obtained. . . . . . . . . . : Wednesday, August 28, 2013 9:19:03 PM
   Lease Expires . . . . . . . . . . : Thursday, August 29, 2013 9:19:03 PM
   Link-local IPv6 Address . . . . . : fe80::6ddb:63bf:9823:c7fa%12(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.9.3(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.9.1
   DHCPv6 IAID . . . . . . . . . . . : 251667325
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-AD-E9-FB-00-23-7D-9B-FE-C0

   DNS Servers . . . . . . . . . . . : fe80::120d:7fff:fe71:852c%12
                                       4.2.2.1
                                       8.8.8.8
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{62F24E1D-7752-416D-B7BC-E4327BCB5436}:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::5efe:192.168.9.3%15(Preferred)
   Default Gateway . . . . . . . . . :
   DNS Servers . . . . . . . . . . . : fe80::120d:7fff:fe71:852c%12
                                       4.2.2.1
                                       8.8.8.8
   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 12:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:953c:286a:2d2f:9d2b:30e8(Preferred)
   Link-local IPv6 Address . . . . . : fe80::286a:2d2f:9d2b:30e8%14(Preferred)
   Default Gateway . . . . . . . . . :
   NetBIOS over Tcpip. . . . . . . . : Disabled
NetwoodyOwnerAsked:
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dipopoCommented:
Try the fixit tool to prefer IPv6 over IPv4, else do them anual change as described further down the kb

http://support.microsoft.com/kb/929852/en
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NetwoodyOwnerAuthor Commented:
The article doesn't apply to Windows Server 2012.

I also tried the Fixit's which either said that, or did nothing...

Hrmmm...
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NetwoodyOwnerAuthor Commented:
I eventually solved it myself. SORT OF,

I statically set the ipv6 address, default gateway and dns, based on the LAN facing ipv6 address assigned to the router. (2601:blah:blah:blah:)

Magically, i gained access to ipv6 websites immediately.

Bottomline: DHCPv6 is broken on Windows Server 2012, and there are ZERO support articles to deal with this, or even point anyone in the right direction.

Am i the only one around here that has noticed the total lack of documentation or support for all the missing features, and admin panels for Server 2012, or even Windows 8???
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NetwoodyOwnerAuthor Commented:
Got me up and running. But doesn't solve the broken DHCPv6 client on Windows Server 2012.
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