Backups of a VMware host fail with "Final error: 0xe0009541 - Could not connect to the vCenter server or ESX server. Please verify the credential supplied for login" when the Advanced Open File Option (AOFO) is not enabled for the job. This issue is seen when the selection is made through vCenter or to the ESX host directly.
Error in Beremote log:
 2012-09-24T07:42:40.766 [dsss] | DS session handle: 0000000007F950B0(00000000003775F0) closed.
 2012-09-24T07:42:40.767 [dsss\srv] - DsWorkerThread terminating with exit code 0
 2012-09-24T07:42:42.524 [fsys\shared] - vddkConnectToVMWareServer() GD: vmcLogin failed, result = 0X6
 2012-09-24T07:42:42.525 [fsys\shared] - vddkDisconnectFromVCServer(): status = 0X0
 2012-09-24T07:42:42.525 [ndmp\loops] - LP_ENV::MsgError: error 0xe0009541 processing object <Unknown>
This issue is resolved in Backup Exec 2014 or later versions.
To resolve this issue and receive the new Backup Exec improvements please upgrade to the current version of Backup Exec.
NOTE: Symantec continues to focus on the current release and future releases, there are no plans to address this issue by way of a patch or hotfix in earlier versions of the software at the present time. Please contact your Symantec Sales representative or the Symantec Partner for upgrade information including upgrade eligibility to the release containing the resolution for this issue. For information on how to contact Symantec Sales, please see http://www.symantec.com
Workaround: (Backup Exec 2012)
Please verify that all permissions are correct for the account being used for the backup process. For more information on what permissions are needed to protect an ESX host please refer to the related documents at the end of this article.
If the permissions are correct, enabling the Advanced Open File Option should allow the backups to complete successfully.