Backup job failing with error ORA-12546: TNS:permission denied

Hi All
This is regarding one backup job running on windows server 2003 failing with below error.. when we are running this job manually that is running fine.. but not running from windows scheduler.
its 9.2.0.1 and the 32 bit... windows 2003 64 bit
Recovery Manager: Release 9.2.0.1.0 - Production
Copyright (c) 1995, 2002, Oracle Corporation. All rights reserved.
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00554: initialization of internal recovery manager package failed
RMAN-04005: error from target database:
ORA-12546: TNS:permission denied
Please help.
Edited by: 811427 on Sep 6, 2011 12:36 AM

I assume you installed Oracle as "Administrator" user. If so, make sure you are running the job from the same user. Optionally open "services.msc" and go to the "ORCL Service" or whatever it may and check "Log on" tab. It should be "logon as" value should be "Local system". If you are using a domain then give credentials accordingly. Make sure you are part of "DBA" group.
The ORA-12546 TNS:permission denied points to "Insufficient permissions to trace/log files" - check the trace/log destination is writable and requisite permissions are given.

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Backup job failing with error ORA-12546: TNS:permission denied

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