DHCPv6 client in Windows 10 broken after anniversary update

Harald F. Karlsen harald at bgp.no
Mon Oct 10 15:36:16 CEST 2016

On 10.10.2016 15:29, Mikael Abrahamsson wrote:
> So I did some more investigation. I had missed that I needed to use 
> /renew6 and /release6 before.
> Now I have 10 minute lease time.
> 5 minutes into the lease time, I can /renew6 the lease successfully 
> and get 10 more minutes leasetime.
> around 2-3 minutes before the lease-time expires I see that Win10 has 
> marked the IA_NA as (deprecated), I try to do "/renew6" I get the 
> following error:
> "An error has occured while renewing interface Ethernet: The semaphore 
> timeout period has expired".
> This renew fails. If I now ctrl-c this /renew6 and run /renew6 again, 
> the renew succeeds and the address is back again as (preferred) and 
> the lease time is 10 minutes.
These are the exact same obervations I have done so far.
> I also have a Ubuntu 16.04 box that won't keep its lease either... so 
> I don't know what's going on. Will look further.
> Harald, what DHCPv6 server are you using?
I run my DHCPv6 server on a Juniper SRX220 with Junos 12.1X46-D55.


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