Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.Note: If you’re not logged in as an administrator, you may need to right-click DynUpdater.msi and select Run as administrator.ģ. If the Answer is helpful, please click " Accept Answer" and upvote it. To make the change take effect, I would suggest you could delete the specific records manually.įor more details regarding of Aging and Scavenging, please refer to the following article and thread: Otherwise, you need clean up these stale records manually. Regarding of the stale records, have you enabled Aging and Scavenging on DNS server? If this feature was enabled, then those stale records will be scavenged automatically after NoRefresh interval+ Refresh interval + Scavenge period. Note: please restart DNS or DHCP server after you made any changes on them. I have performed some tests in my lab and attaching the following test results for your reference.ĭNS and DHCP are in two separate Windows servers.Ĭonfigure Always dynamically update A and PTR and add a credential account on DHCP server, the Host record can be updated by DHCP server successfully.Ĭonfigure Always dynamically update A and PTR and add DHCP server in DNSUpdateProxy group, the Host record can be updated by DHCP server successfully. Where else can start looking to help diagnose this issue. I haven't yet tried adding the DHCP Server to the DNSUpdateProxy group. The logs are reaching their max 10MB size daily. Today, we haven't seen any queue limit exceeded events, but things are still failing. Since yesterday, I have changed the DNS Queue length in the registry and restarted DHCP. Some A records have the custom user account as the owner and some have the actual computer object itself (I know by default only the owner can make some changes to the DNS records) However I have also been told "stale" DNS has happened for a very long time The above settings are historic and so I have no knowledge around the original decisions - I have inherited this issue just this week!ĭHCP Server is 2008 R2, and is NOT running AD DS or DNS roleĭNS Servers are all now 2016 - this upgrade work happened very recently and some believe this problem has started since decommissioning the last 2008 R2 DNS Server. We have DHCP Server set to this, and there is presently a single DHCP Server.ĭynamically update for clients that do not request updates: OnĬustom domain user account for doing the updatesĭHCP Server is NOT in the DnsUpdateProxy group Sometimes it works and sometimes it doesn't. We have LOTS of scopes, with different lease times. Basically DHCP is not consistently keeping DNS in order so we have multiple hostnames with the same IP. I have an issue that I'm struggling to solve fully.
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