Windows 7 dhcp not updating dns

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This is because DHCP doesn’t own the record, the client does, even though DHCP registered it.The way to get around this is you can configure DHCP’s Option 081 to update the record for all client, no matter if the client asks or not.This is because the client will not update itself due to the current record in DNS is beyond the lease period.This happens even though DHCP registered the record.Therefore, even if they were to scavenge these records, assuming the time stamp has ever been reached, the machines will refresh themselves anyway!

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Well, I thought it’s time for an update and to just offer a summary in the beginning, because in this day and age, no one wants to read!If there is no timestamp, such as a manually created, static record, it will not get scavenged.Also, if all servers, including DCs, are automatically updating their own record, then there is no fear of losing their records, because for one, their records (timestamps) are current, therefore scavenging won’t touch them, and two, Windows Servers by default will update their records every 24 hours, with the exception of domain controllers at every 60 minutes.Note: “This is a modified configuration supported for DHCP servers running Windows Server 2008 and DHCP clients.In this mode, the DHCP server always performs updates of the client’s FQDN, leased IP address information, and both its host (A) and pointer (PTR) resource records, regardless of whether the client has requested to perform its own updates.” “With secure dynamic update, only the computers and users you specify in an ACL can create or modify dns Node objects within the zone.

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