DHCPv6 client in Windows 10 broken after anniversary update

[Michael Oghia]

Hi everyone,

Does anyone know if Microsoft is aware of this issue? Perhaps it can be
forwarded to someone who can pass it along to the engineers.

Best,
-Michael


On Mon, Oct 10, 2016 at 11:28 AM, Trevor Warwick <twarwick at gmail.com> wrote:

> I've think I've also seen this. To work around a bug in my Ubiquiti router
> at home, I can't use SLAAC, so need to rely on DHCPv6 for address
> assignment.  This weekend, a recently upgraded Windows 10 Anniversary
> machine wasn't successfully getting an IPv6 address. Looking at it with
> wireshark,IIRC, the client sent a Solicit, the server sent an Advertise,
> but there was no Request from the client after that.
>
> On 10 October 2016 at 09:14, Harald F. Karlsen <harald at bgp.no> wrote:
>
>> Hi,
>>
>> It seems like Microsoft somehow broke DHCPv6 client functionality in the
>> Windows 10 anniversary update and now neither stateful nor stateless DHCPv6
>> functionality works unless you manually issue "ipconfig /renew6" (for
>> stateful DHCPv6 this will only give you IPv6-connectivity untill the lease
>> expires).
>>
>> This is generally not a big issue for dual-stacked residential customers
>> as most CPEs does SLAAC on the LAN-side, but the Win10 clients will not
>> recieve DNS from DHCP if the CPE is configured for that. For enterprise
>> networks on the other hand this can be a big issue. Especially when running
>> FHS and no SLAAC.
>>
>> Have anyone on the list experienced issues with this yet? If so, have you
>> contacted Microsoft and what did they say? I've found reports on this issue
>> dating back from early august so it's strange that Microsoft have not yet
>> issued a fix for it.
>>
>> --
>> Harald
>>
>
>
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