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DNS Dynamic registration problem

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7 replies

by patrick.bisaillon

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I have setup DNS and Active Directory on a Windows 2000 Server with SP2. When I go to Event Viewer -> System Log, I have a warning (yellow exclamation mark) Event ID 5781 saying:

Dynamic registration or deregistration of one or more DNS records failed because no DNS servers ara available.

- My prefered DNS in TCP/IP properties is the server IP address itself

The access to Active Directory works fine, the users can log on correctly and they are recorded in DNS.

If you need more informations, please contact me through my e-mail address.

Thanks for your help.

7 replies

by cportman

Do you have two network adapters? if so check that they both are pointing at their own ip address.

Check to make sure that the zone file is accepting dynamic entries.

I have seen that before, i think its because the computer tries to registeritself before firing up the network card.

One way to test it would be to clear the log. Then restart the NetLogon service, this will get the dc to reregister itself - see if the message shows up again. Before you restart the service you could blow away the AD entries in DNS - but i wouldn't do it on a production environment.

Good luck.
cp

by patrick.bisaillon

Do you have two network adapters? if so check that they both are pointing at their own ip address.
- No I don't

Check to make sure that the zone file is accepting dynamic entries.
- It does accept Dynamic entries

One way to test it would beto clear the log. Then restart the NetLogon service, this will get the dc to reregister itself - see if the message shows up again. Before you restart the service you could blow away the AD entries in DNS - but i wouldn't do it on a production environment.
- I tried that already and yes the message shows up again, same when I reboot the server since the Netlogon tries the same patern. The message shows up in the system log every hour or so. I have looked at MS knowledge base for almost half aday and did not found a fix.

by jack republic

this usualy hapens when you have only one dns
server (and one d.c) and when the d.c is starting the net logon is not finding the dns server because it didnt start complitly.
however it is not effecting the preformens.

by bentgellerich

This is a known issue with microsoft. The problem is that when a Windows 2000-based Active Directory-integrated DNS server that hosts a global catalog boots, the registration of specific SRV records may not succeed.

The service startup order prevents certain SRV records from being registered because those services start before DNS is ready to receive registrations on a global catalog server.

To solve this either:

1. Move the DNS server or Global Catalog to a different machine

2. Do not use Active Directory Integrated Zones (I went with this one since I did'nt care about replication with only 1 DC)

Good luck

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