Windows 10: Event ID 1006 from DHCPv6 Client

Discus and support Event ID 1006 from DHCPv6 Client in Windows 10 Network and Sharing to solve the problem; I recently got a new modem and with it, a new wi-fi connection. Everything's been perfectly fine except for potentially one minor detail that I'm... Discussion in 'Windows 10 Network and Sharing' started by trashbag, Nov 9, 2018.

  1. trashbag Win User

    Event ID 1006 from DHCPv6 Client


    I recently got a new modem and with it, a new wi-fi connection. Everything's been perfectly fine except for potentially one minor detail that I'm curious about. Every time I boot up my computer, I'm seeing this Event ID 1006 from DHCPv6 Client in the Event Log under Information events.

    "Router Advertisement settings have been changed on the network adapter 13. The current M - Managed Address Configuration flag is false and the O - Other Stateful Configuration flag is true. User Action: If you are seeing this event frequently, then it could be due to frequent change in M and O flag settings on the router in the network. Please contact your network administrator to have it resolved."

    It's not an error and it only occurs once at startup so it's not a big deal or anything, but what can I do to get rid of this event? I've found other people having this same event on Google, but all the results are quite dated and they seem to be having actual Internet issues along with this event which I thankfully haven't been having yet.

    To be completely honest, I may have been receiving this event even before I got a new modem but I've never noticed it or paid attention to it until now. Would be pretty coincidental to not have noticed it until I got a new modem though. Anyone else have gotten this event?

    :)
     
    trashbag, Nov 9, 2018
    #1
  2. Xiusho Win User

    DHCPv6-client


    I'm getting multiple DHCPv6-client errors in my event viewer event id 1000 your computer has lost the lease to it's ip address and event id 1003 your computer was not able to renew it's address from the network. I've tried to google this but there isn't much info on it. Anyone know how to fix this?
     
    Xiusho, Nov 9, 2018
    #2
  3. Andy B# Win User
    Windows 10 Anniversary Update breaks DHCPv6 client

    I have an IPv6 enabled LAN. I use Stateless Address Autoconfiguration (M flag on the router set to 0) and Stateful Other configuration (O flag set to 1) so the IPv6 clients generate thier own IPv6 addresses and use DHCPv6 to obtain the DNS server IPv6 addresses.
    I have a couple of Windows 2008 R2 DHCP servers with just Global Server Options configured under IPv6. These options are '23 DNS Recursive Name Server IPv6 Address List' and '24 Domain Search List'. These servers are on different networks so I have DHCPv6
    forwarding configured on my layer-3 switches to the IPv6 addresses of the two DHCPv6 servers.

    This has worked effortlessly with Windows Vista, Windows 7 and Windows 2008/R2 as well as Windows 10 version 1511. The clients see the router advertisements with the M flag set to 0 and the O flag set to 1 and generate their own IPv6 addresses and then
    send a DHCPv6 Information Request requesting options 23, 24, 17 & 32. The DHCPv6 server responds with options 23 & 24 and the client gets the IPv6 DNS servers.

    I have built a couple of machines with the new Windows 10 Anniversay Update and the DHCPv6 behaviour has changed. The client generates its own stateless IPv6 addresses but no longer sends a DHCPv6 Information Request and instead sends a Solicit like it
    would if the M flag was set to 1. Obviously the DHCPv6 server does not respond since it doesn't have a scope configured for the clients prefix.

    This is what it shows on the client:

    netsh interface ipv6>show dnsservers

    Configuration for interface "Ethernet"

    DNS servers configured through DHCP: None

    Register with which suffix: Primary only

    Configuration for interface "WiFi"

    DNS servers configured through DHCP: None

    Register with which suffix: Primary only

    netsh interface ipv6>show interface wifi

    Interface WiFi Parameters

    ----------------------------------------------

    IfLuid : wireless_32768

    IfIndex : 3

    State : connected

    Metric : 40

    Link MTU : 1500 bytes

    Reachable Time : 18500 ms

    Base Reachable Time : 30000 ms

    Retransmission Interval : 1000 ms

    DAD Transmits : 1

    Site Prefix Length : 64

    Site Id : 1

    Forwarding : disabled

    Advertising : disabled

    Neighbor Discovery : enabled

    Neighbor Unreachability Detection : enabled

    Router Discovery : enabled

    Managed Address Configuration : disabled

    Other Stateful Configuration : enabled

    Weak Host Sends : disabled

    Weak Host Receives : disabled

    Use Automatic Metric : enabled

    Ignore Default Routes : disabled

    Advertised Router Lifetime : 1800 seconds

    Advertise Default Route : disabled

    Current Hop Limit : 64

    Force ARPND Wake up patterns : disabled

    Directed MAC Wake up patterns : disabled

    ECN capability : application

    netsh interface ipv6>

    I tried adding a scope to the DHCPv6 server and it does reply and I can see in the WireShark trace that options 23 & 24 are given, however the client does not complete the DHCPv6 process and still shows no IPv6 DNS Servers received via DHCPv6. I can
    see that it knows the M & O flags are now both set to 1:

    Managed Address Configuration : enabled

    Other Stateful Configuration : enabled

    I have compared this behaviour to a Windows 7 SP1 host and whether I use Stateless DHCPv6 (M=0, O=1) or Stateful DHCPv6 (M=1, O=1) it works perfectly.

    I am guessing that this is a bug in the IPv6 stack in Windows 10 Anniversary Update? I have seen some other people complaining about this issue so has Microsoft acknowledged it and commited to providing a fix?

    Andy
     
    Andy B#, Nov 9, 2018
    #3
  4. Andy B# Win User

    Event ID 1006 from DHCPv6 Client

    Andy B#, Nov 9, 2018
    #4
Thema:

Event ID 1006 from DHCPv6 Client

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