DHCPv6 client in Windows 10 broken after anniversary update

Harald F. Karlsen harald at bgp.no
Thu Mar 16 01:06:45 CET 2017

On 10.10.2016 10:14, Harald F. Karlsen 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.
If looks like this was finally resolved in the 2017 March cumulative 
update for Windows. I have verified it on Windows 10 Home and Pro, but I 
also got one report claiming it was not resolved in Windows 10 
Enterprise, can someone confirm this?


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