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Connection To ASM Instance Fails With ORA-12547 (Doc ID 1351745.1)

Last updated on MARCH 19, 2018

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.
***Checked for relevance on 21-Jun-2013***


While trying to startup CRS,ASM does not come up and ora.asm status is OFFLINE.
When try to connect to ASM instance from sqlplus it gives below error.

sqlplus "/ as sysasm"

SQL*Plus: Release Production on Tue Aug 23 12:04:50 2011

Copyright (c) 1982, 2010, Oracle. All rights reserved.

ORA-12547: TNS:lost contact


Below parameters added in sqlnet.ora



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