Hi All, I see this Warning Event id very often in one of my mailbox server. This mailbox server is part of CCR cluster.Event Type: WarningEvent Source: MSExchange ADAccessEvent Category: Configuration Event ID: 2128Date: 1/18/2010Time: 1:11:10 PMUser: N/AComputer: EXMCPLC03ADescription:Process STORE.EXE (PID=1540). Object CN=FAX,CN=409,CN=Address-Templates,CN=Addressing,CN=ERE,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=xcelenergy,DC=com was not found on the Domain Controller xelcplc01.corp.com. This may indicate a replication or permission issue. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.After some googling all i could find is that for every 15 minutes ADaccess discovers the DC's & GC's and Hubs in the site where the mailbox is present and creates an event called 2080.However, i could not get much infor regarding this 2128.. ?Any help would be appreciated.ThanksShiv

Hi Shiv, We could see the warning is an object can’t be found in DC. I suggest you use adsiedit.msc connect to xelcplc01.corp.com and other DC in your domain to check if you could find the object CN=FAX,CN=409,CN=Address-Templates,CN=Addressing,CN=ERE,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=xcelenergy,DC=com. If you could see the object when connecting to other DC, it can be caused by a replication or permission issue. If so, check the permission of that object, and compare with other value(e.g. CN=smtp). Please also run Exbpa in that server to do a health check and permission check if the issue persists. This is a warning in event log, if you find there is no impact to your business, you could ignore it safely. Thanks, Elvis

Hi,Yeah as of now there is no business mpact. However, i see lot of these in event log which i thought might be indicative of some kind of persistent issue. Thanks anyway i will keep you all posted with what i have observed as per your instructiion above.ThanksShiv