DNS dynamic update pending in DHCP

Discussion in 'DNS Server' started by levd, Oct 25, 2006.

  1. levd

    levd Guest

    Hello,

    Im having a problem and im wondering if someone can help me.
    In DHCP the icons of the computers have a pencil in it, it seems it means
    this:

    "Active lease, DNS dynamic update pending. This address is not available for
    lease by the DHCP server."

    Does someone knows how to fix this problem?
    I installed DHCP on another server and deinstalled it on the
    first...settings are all the same...im not using DNS Dynamic update
    credentials, i never used this and wondering if i have to now?...DHCP server
    is working for the rest 100% ok..
    Also using vlans...

    Thx for the help.
     
    levd, Oct 25, 2006
    #1
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  2. In
    Maybe it's an IP configured from the old DHCP server. Did you attempt to
    renew all your clients so they get an IP from the new DHCP server?

    As for VLANs, that depends on how you have it setup. There are so many
    different options to set up a VLAN and if misconfigured, it is difficult to
    pinpoint where it's going wrong.


    --
    Ace
    Innovative IT Concepts, Inc (IITCI)
    Willow Grove, PA

    This posting is provided "AS-IS" with no warranties or guarantees and
    confers no rights.

    Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
    Microsoft MVP - Directory Services
    Microsoft Certified Trainer

    Having difficulty reading or finding responses to your post?
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    Infinite Diversities in Infinite Combinations
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    Ace Fekay [MVP], Oct 30, 2006
    #2
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  3. levd

    levd Guest

    Hello,

    Al clients have a new ip address from the new DHCP server.
    The old DHCP server is not running anymore.
    Vlans are configured correctly.....
    ALso the clients are working correctly but i never seen this icon with a
    pencil before....and i wonder why the dynamic dns update is pending...

    Thx,
    LEVD
     
    levd, Oct 31, 2006
    #3
  4. levd

    Jorge Silva Guest

    Hi
    Are the clients receiving the IP Address from the correct server?
    Does the DHCP server have available ips to attrib?

    --
    I hope that the information above helps you
    Good Luck

    Jorge Silva
    MCSA
    Systems Administrator
     
    Jorge Silva, Oct 31, 2006
    #4
  5. In
    Did you confirm this (as Jorge asked as well)? When you run an ipconfig /all
    on the client, I assume it shows the new DHCP?
    Did you unauthorize the old one?

    Also, the only time I've seen a pencil is in third party DHCP servers.
    HOwever, if it is having difficulty updating into DNS, then it may be a red
    flag that the incorrect DNS servers are being referenced. This means in an
    AD environment, only the internal DNS servers are to be used. If it is
    pointing to an ISP's DNS or some other DNS (or even the Linkysys router)
    that is not accepting updates or doesn't host the zone, then we have a
    mis-configuration.

    Can you provide an unedited ipconfig /all of a machine in question and the
    DC please (assuming this is your DHCP server). - Thanks!

    Ace
     
    Ace Fekay [MVP], Nov 1, 2006
    #5
  6. levd

    levd Guest

    Hi there,

    The clients recieve correct ip adresses from the correct DHCP server.
    The old DHCP server is unautherized.
    Im using internal DNS servers

    Thank you.
     
    levd, Nov 1, 2006
    #6
  7. In
    Assuming that updates are not working:
    1. Any event log errors on the workstations or domain controller?
    2 .Is the AD DNS domain a single label name?
    3. Zone name match the AD DNS domain name?
    4. Updates allowed on the zone?

    Keep in mind, whenever one of us in the groups ask questions or ask for
    configuration information from an installation, it helps to view the actual
    config and eliminate the obvious.

    Your help will help us to help you.

    Ace
     
    Ace Fekay [MVP], Nov 1, 2006
    #7
  8. levd

    Jorge Silva Guest

    Have you assigned a user account with a non-expiring password in the DHCP
    scope properties for the DHCP server to authenticate with the DNS server? Or
    did you change that password recently?
    are you seeing errors in eventvwr.

    You can also run network monitor to check what is going on...

    --
    I hope that the information above helps you
    Good Luck

    Jorge Silva
    MCSA
    Systems Administrator
     
    Jorge Silva, Nov 1, 2006
    #8
  9. In
    We will need to add a #4): If the client Primary DNS Suffix doesn't match
    the zone's name that has updates allowed, it cannot register. The Primary
    DNS Suffix must match.


    --
    Regards,
    Ace

    This posting is provided "AS-IS" with no warranties or guarantees and
    confers no rights.

    Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
    Microsoft MVP - Directory Services
    Microsoft Certified Trainer

    Infinite Diversities in Infinite Combinations

    Having difficulty reading or finding responses to your post?
    Instead of the website you're using, try using OEx (Outlook Express
    or any other newsreader), and configure a news account, pointing to
    news.microsoft.com. Anonymous access. It's free - no username or password
    required nor do you need a Newsgroup Usenet account with your ISP. It
    connects directly to the Microsoft Public Newsgroups. OEx allows you
    o easily find, track threads, cross-post, sort by date, poster's name,
    watched threads or subject. It's easy:

    How to Configure OEx for Internet News
    http://support.microsoft.com/?id=171164

    "Quitting smoking is easy. I've done it a thousand times." - Mark Twain
     
    Ace Fekay [MVP], Jun 16, 2007
    #9
  10. levd

    Jeff Guest

    We need to add a #5.

    Ensure you have a reverse lookup zone for that DHCP scope.
     
    Jeff, Aug 17, 2007
    #10
  11. In
    Good point. This is so there are no SPNEGO errors.


    Ace
     
    Ace Fekay [MVP], Aug 20, 2007
    #11
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