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Title
ERROR: Unable to calculate clock skew: NetRemoteTOD(\\ExchangeServerName): -
Description
An error similar to the following example can be observed in a WLOG file generated by the Exchange Store Manager (ESM) service:
23:39:49 ERROR: Unable to determine clock skew. It is not possible to update folder last processed times.
23:39:49 Connect string is server=ExchangeServerName;mailbox=/o=OrgName/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=nameofmailbox;type=user;mode=mailbox;isservice=1;isHiddenFromGal=0;isExchange55=0;addPFFlags=0;serverDn=/o=OrgName/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=ExchangeServerName
23:39:49 MAPI settings file C:WINDOWSsystem32MAPISVC.INF (writeable)
23:39:49 Exporting Mailbox: Mailbox - mailboxname
23:39:49 ERROR: Unable to calculate clock skew:
23:39:49 NetRemoteTOD(\\ExchangeServerName):
23:39:49 [00000888] The service has not been started.
23:39:49 ERROR: Unable to determine clock skew. It is not possible to update folder last processed times. -
Cause
Unable to acquire Time from Exchange Server.
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Resolution
Confirmation of this problem can be obtained by running the following command, from a command line on the Archive Manager services server(replace casarray.domain.com with the CAS array hostname):
NET TIME \\ExchangeServerName
The following error should be received:
The service has not been started.
Performing the same test using the the FQDN of the Exchange server will succeed however, e.g.:
NET TIME \\ExchangeServerName.DOMAIN.COM
To correct the problem:
1. On the Archive Manager server, create an LMHOSTS file in %SYSTEMROOT%\System32\Drivers\etc and populate it with the name of the Exchange server(s) causing the error.
2. Ensure that LMHOSTS lookup is enabled in the Advanced TCP/IP setup for the Archive Manager servers Network Connection.
3. Try the above Test again, both test should now succeed.
4. Restart the ESM service.
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Additional Information