Listener Fails To Start With TNS-12545 / Windows Error 49

(Doc ID 747893.1)

Last updated on OCTOBER 12, 2016

Applies to:

Oracle Net Services - Version to [Release 10.2 to 11.2]
Microsoft Windows x64 (64-bit)
Microsoft Windows (32-bit)
***Checked for relevance on 7-AUG-2014***


After restarting a RAC node, you are unable to start the listener, as it fails with TNS-12545 / Windows error 49.

The listener is configured to listen on both VIP and physical IP. The VIP is responding to ping.

C:\>lsnrctl start LISTENER1
    LSNRCTL for 32-bit Windows: Version - Production on 04-NOV. -2008 17:46:54
    Copyright (c) 1991, 2006, Oracle.  All rights reserved.
    Starting tnslsnr: please wait...
    TNSLSNR for 32-bit Windows: Version - Production
    System parameter file is D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
    Log messages written to D:\oracle\product\10.2.0\db_1\network\log\listener_romansrv1.log
    Error listening on : (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=host1_vip)(PORT=1521)(IP=FIRST)))
    TNS-12545: Connect failed because target host or object does not exist
    TNS-12560: TNS:protocol adapter error
      TNS-00515: Connect failed because target host or object does not exist
       32-bit Windows Error: 49: Unknown error


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