I've got a 2003 SP2 Domain with primary and replicatin DC and Exchange Server 2010 SP2 on 2008R2 server. All have been working fine for the 9 months since bringing up the exchange server. After routine updates and reboot some of my outlook users are getting security alerts for the autodiscovery and OWA users are getting errors when logging in. If the outlook users click yes to the security alert or re-install the cert they connect and may or may not get the alert hours later. The OWA users can just refresh their browser from the error and in 99.9% of the cases their mailbox will load fine. I'm also getting periodic Initialization Failed errors when opening EMC.
I've run ExBPA no problems are found. I've run dcdiag on both DC's and from Exchange against both DC's and all pass. I've also restarted MSExchange AD Topology service and the others required by that restarting that service. When I review the event log on the server though I'm seeing a number of errors. These are not all of them but they seem to all indicate communication issue between DC's and Exchange.
MSExchange Mailbox Replication Event ID 1005
Description:
The Mailbox Replication service was unable to determine the list of mailbox databases hosted in the local Active Directory site.
Error: Could not find any available Domain Controller.
MSExchange ADAccess Event ID 2102
Description:
Process MAD.EXE (PID=4708). All Domain Controller Servers in use are not responding:
dc1.domain.local
dcr.domain.local
MSExchangeMailSubmission Event ID 1009
Description:
The Microsoft Exchange Mail Submission service is currently unable to contact any Hub Transport servers in the local Active Directory site. The servers may be too busy to accept new connections at this time.
I've run ExBPA no problems are found. I've run dcdiag on both DC's and from Exchange against both DC's and all pass. I've also restarted MSExchange AD Topology service and the others required by that restarting that service. When I review the event log on the server though I'm seeing a number of errors. These are not all of them but they seem to all indicate communication issue between DC's and Exchange.
MSExchange Mailbox Replication Event ID 1005
Description:
The Mailbox Replication service was unable to determine the list of mailbox databases hosted in the local Active Directory site.
Error: Could not find any available Domain Controller.
MSExchange ADAccess Event ID 2102
Description:
Process MAD.EXE (PID=4708). All Domain Controller Servers in use are not responding:
dc1.domain.local
dcr.domain.local
MSExchangeMailSubmission Event ID 1009
Description:
The Microsoft Exchange Mail Submission service is currently unable to contact any Hub Transport servers in the local Active Directory site. The servers may be too busy to accept new connections at this time.