Event ID 404, 407 and 408

Posted on 2012-08-28
Last Modified: 2013-01-14
Hello Experts!

I have a lab with a virtualized Windows Server 2008 R2 with AD, DNS and DHCP configured for tests.
The event ID 10020 was showing in the list and I resolved assigning a static IPv6 as requested, but now those 3 events (404, 407 and 408) are showing.
I´ve done some research and found some info but not enough to understand and solve it.
Can you MS experts give an extra hand?

Question by:HicSunt
    LVL 60

    Expert Comment

    The 10020 is a warning : This computer has at least one dynamically assigned IPv6 address.For reliable DHCPv6 server operation you should use only static IPv6 addresses.

    when I do a quick test below, the top list all allude to DNS as first error

    So I move tp make source for all as "DNS" and largely stating DNS Server could not open socket for address [IP address of server]. Verify that this is a valid IP address on this machine.

    hope it help to explore further
    LVL 52

    Accepted Solution

    Firstly why are we using IPv6 ? Is it required for some application or protocol function ?
    Is Ipv6 pointing to correct DNS ??
    Do you have multiple NIC's ? Is there a teaming ?

    How do I fix DNS error 407 408

    Flurry of DNS 4015, 407, 408, and 404 errors after every reboot

    - Rancy

    Author Comment

    No no, I dont need IPv6. As I said it´s just a LAB but if I deactivate IPv6 I will get another event ID which I dont remember. Gonna try this and post the event ID.

    There are 2 NICs (one for LAN using VMNET2 and one for a bridge connection with the physical network for internet access). So no teaming too...
    LVL 60

    Expert Comment

    Pls let us know if this still require clarifications, thks

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