Error with event 2087

Posted on 2011-05-05
Medium Priority
Last Modified: 2012-05-11
I'm getting this error and I'm not sure what it means and what is causing it. The "Failing DNS Host Name" looks strange...not sure if it's invalid and can be deleted from DNS..?? Wondering if doing so will stop this error.

Log: Directory Service
Type: Error
Event: 2087
Agent Time: 2011-05-03 03:07:23Z
Event Time: 02:03:43 AM 3-May-2011 UTC
Source: NTDS Replication
Category: DS RPC Client
Computer: CLEONA-DC
Description: Active Directory could not resolve the following DNS host name of the source domain controller to an IP address. This error prevents additions, deletions and changes in Active Directory from replicating between one or more domain controllers in the forest. Security groups, group policy, users and computers and their passwords will be inconsistent between domain controllers until this error is resolved, potentially affecting logon authentication and access to network resources.

Source domain controller:


Failing DNS host name:


Accepted Solution

Michael Knight earned 2000 total points
ID: 35698916
Have you read here?


also you need to provide the OS version. 2k3 or 2k8?

Author Comment

ID: 35707295
ok thanks.. I've run my tests and it says something about "Dynamic update is enabled on the zone but not secured". How can I fix this and will it make the error go away?

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Numerous times I have been asked this questions that what is it that makes my machine log on so slow, there have been cases where computers took 23 minute exactly after taking password and getting to the desktop. Interesting thing was the fact th…
I've always wanted to allow a user to have a printer no matter where they login. The steps below will show you how to achieve just that. In this Article I'll show how to deploy printers automatically with group policy and then using security fil…
Despite its rising prevalence in the business world, "the cloud" is still misunderstood. Some companies still believe common misconceptions about lack of security in cloud solutions and many misuses of cloud storage options still occur every day. …
As many of you are aware about Scanpst.exe utility which is owned by Microsoft itself to repair inaccessible or damaged PST files, but the question is do you really think Scanpst.exe is capable to repair all sorts of PST related corruption issues?

755 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question