%META:TOPICPARENT{name="ErrorMessagesO"}%
==Error Messages (O)==

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===ORA-28546: connection initialization failed, probable Net8 admin error===

<p><strong>Error</strong><br />
  <tt>ERROR at line 1:<br />
  ORA-28546: connection initialization failed, probable Net8 admin error<br />
  ORA-02068: following severe error from HSODBC<br />
  ORA-03113: end-of-file on communication channel</tt></p>
<p><strong>Application:</strong> Oracle 9i Release 2 (v 9.2 and up) Heterogeneous Services<br />
  <strong>Client OS:</strong> Unix (Solaris, HP, AIX, etc)></p>
<p><strong>Cause</strong><br />
  When using Oracle Heterogeneous Services on Oracle Release 9.2 and up on Unix systems, the tnsnames.ora entry is incorrectly formatted.  Note the following revised syntax required with Oracle 9.2:</p>
<blockquote><tt><pre>hsodbc =
    (description=
      (address_list =
        (address=(protocol=tcp)(host=hostname)(port=1521))
      )
      (connect_data=
        (SID=hsodbc)
      )
      (HS=)
    ) </pre></tt></blockquote>
<p><strong>Solution: </strong><br />
  Amend your <tt>$ORACLE_HOME/network/admin/tnsnames.ora</tt> 
  file as shown above (substitute your actual values for hostname and SID as appropriate).</p>