Event ID - 2086

Event Id2086
DescriptionProcess <process name> (PID=<process id>). No Domain Controller server was found in the local site <name>. DSAccess will try to find Domain Controller servers in other sites.
Event InformationAccording to Microsoft:
This event indicates that no domain controller servers were found in the local site mentioned in the event description. Because of this condition, DSAccess will use out-of-site domain controllers, but they may respond much more slowly, which can result in message queuing and network saturation. The following are possible causes of this condition:
1. There are no domain controllers in the local site, or all the domain controllers in the local site are down or not considered suitable by DSAccess.
2. Network problems are preventing the Exchange server from contacting the domain controller servers.
3. Permission problems.
4. Configuration problems.
User Action :
1. Make sure that at least one domain controller in the local site has been promoted to become a global catalog server, and has had time to synchronize with other global catalog servers, if present. If a local global catalog server is expected to be present, confirm that it is running and reachable over the network from the Microsoft Exchange server.
2. Look for MSExchangeDSAccess Event 2070 (there may be none, one, or several, of these) that may tell when and how global catalog servers became unsuitable. Analyze MSExchangeDSAccess Event 2080 and determine why DSAccess considers all local global catalog servers to be unsuitable (you may need to turn up diagnostics logging for the Topology and Configuration categories of the DSAccess Service).
3. Use the nltest /dsgetdc: /site:<LOCAL_SITE_NAME> command to verify that a global catalog server can be located in the local site. Look for the global catalog flag in the nltest output. The NLTest tool is installed with the Windows support tools.
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