Process %1 (PID=%2). DSAccess failed to obtain DNS records for domain %3.DNS Priority and Weight for the Domain Controllers in this domain will be set to the defaultvalues %4 (priority) and %5 (weight).

Details
Product: Exchange
Event ID: 2105
Source: MSExchangeDSAccess
Version: 6.5
Message: Process %1 (PID=%2). DSAccess failed to obtain DNS records for domain %3.DNS Priority and Weight for the Domain Controllers in this domain will be set to the defaultvalues %4 (priority) and %5 (weight).
   
Explanation

This Warning event indicates that the Exchange server is unable to retrieve information from the Domain Name System (DNS) service on the domain controllers in the local domain. Because of this Warning, clients may be unable to connect to the Exchange server. Microsoft® Exchange Directory Service Access (DSAccess) is a component of Exchange Server System Attendant service that queries for the DNS service records. This warning may be caused by any of the following conditions:

  • DNS service is unavailable

  • DNS service is not configured properly

In such situations, the Exchange server may also not be able to connect to the global catalog servers in the domain (see event 2106 for more information).

Note   System Attendant is the component in Exchange Server 2003 that is responsible for managing directory access. System Attendant includes various internal components, such as DSAccess and DSProxy, which communicate with Active Directory and cache directory information to increase the speed with which directory information is retrieved and to reduce the workload on domain controllers and global catalog servers.

   
User Action

To resolve DNS issues, do one or more of the following:

  • Run Ipconfig on Exchange server to test DNS service connectivity

  • Run Netdiag on the domain controllers to see if the Host (A) records are registered for the Exchange server

  • Run NSlookup on the domain controllers or global catalog servers to identify any DNS service misconfiguration

  • May need to reconfigure DNS service on the domain controllers and the Exchange server in the domain.

For more information about configuring DNS for Exchange 2003, see the Microsoft Knowledge Base article 322856, How to configure DNS to use with Exchange Server.

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