Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=1756). Exchange Active Directory Provider failed to obtain DNS records for domain hoshangroup.local. DNS Priority and Weight for the Domain Controllers in this domain will be set to the default values 0 (priority) and 100 (weight). Can any one help me out I am facing above problem, what exactly it says and how to resolve it. thanks in advance

Seems like DNS issues. - See this http://social.technet.microsoft.com/Forums/en-US/exchangesvravailabilityandisasterrecovery/thread/49777f70-f660-461b-a388-ebb10e30fdc5 You may see a 2080 event ID in the event log, if you do post that, Make sure you DC/GC are online and working correctly, If you have hard coded DC to be used by Exch then make sure that DC/GC is working properly. Sukh

Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=1756). Exchange Active Directory Provider failed to obtain DNS records for forest DC=hoshangroup,DC=local. DNS Priority and Weight for the Global Catalog servers in this forest will be set to the default values 0 (priority) and 100 (weight Event ID: 2106 I didnot fine 2080 but found another warning in the event viewer. EXCH ADMIN

Post the event, Sukh

Posted already, the earlier was 2105 and the other was 2106EXCH ADMIN

Run the ExchBPA and see what it comes back with and follow the links to address. http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Exchange&ProdVer=8.0&EvtID=2105&EvtSrc=MSExchange+ADAccess&LCID=1033 http://technet.microsoft.com/en-us/library/bb218112(EXCHG.80).aspx Sukh

The below event indicates what and how to resolve, the event below is generated in one of the additional domail controller. NTDS (636) NTDSA: Database C:\Windows\NTDS\ntds.dit: Index INDEX_00090002 of table datatable is corrupted (0). EXCH ADMIN

Still I am getting the two warnings regarding the topology. Pls advise how to resolve it. Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=1756). Exchange Active Directory Provider failed to obtain DNS records for domain hoshangroup.local. DNS Priority and Weight for the Domain Controllers in this domain will be set to the default values 0 (priority) and 100 (weight). Event ID: 2105 Process MSEXCHANGEADTOPOLOGYSERVICE.EXE (PID=1756). Exchange Active Directory Provider failed to obtain DNS records for forest DC=hoshangroup,DC=local. DNS Priority and Weight for the Global Catalog servers in this forest will be set to the default values 0 (priority) and 100 (weight Event ID: 2106EXCH ADMIN

The below event indicates what and how to resolve, the event below is generated in one of the additional domail controller. NTDS (636) NTDSA: Database C:\Windows\NTDS\ntds.dit: Index INDEX_00090002 of table datatable is corrupted (0). EXCH ADMIN Did you see the links I posted. Also what you have posted here relates to AD, seems lie a corruption in your AD database. I would post in the AD formum and get them to have a look at that, address that issue. - http://social.technet.microsoft.com/Forums/en-US/winserverDS/threads This may resolve your Exch issue by the sounds of it, if it does then good. If it doesn't then post back after the AD stuff has been fixed. Sukh

Hi EXCH ADMIN, Any updates? And which version Of Exchange and Windows Server OS do you use? Frank Wang

Hi! Frank, I am using Exch 2007 SP2 & Win 2008 Ent Server. The topology error might be occuring because we have not created the Sites, we have several locations but using default site. Few months ago I tried to create the sites, Exch stop delivering the messages then I roll back to the default. Is it necessary that the sites be created at the time of implementation not later. Exch AdminEXCH ADMIN