Oracle Application Freezing up

Tags:
Microsoft Windows Server 2003
Oracle 11g
Oracle error messages
Windows Server 2003 64 bit
Oracle alert log has below error occurring frequently.  How to troubleshoot message?

Fatal NI connect error 12170.

VERSION INFORMATION: TNS for 32-bit Windows: Version 11.1.0.6.0 - Production Oracle Bequeath NT Protocol Adapter for 32-bit Windows: Version 11.1.0.6.0 - Production Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version 11.1.0.6.0 - Production Time: xxxxTracing not turned on. Tns error struct: ns main err code: 12535 TNS-12535: TNS:operation timed out ns secondary err code: 12606 nt main err code: 0 nt secondary err code: 0 nt OS err code: 0 Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.x.xxx)(PORT=xxxx)) WARNING: inbound connection timed out (ORA-3136)



Software/Hardware used:
OOracle 11g, O.S., Windows Server 2003 Enterprise x64 SP2

Answer Wiki

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It seems to be related to a client authentication problem (ora-03136). The authentication process was not completed before the timeout occurred.

Here are a couple of links that may help you:

<a href=”http://www.dba-oracle.com/sf_ora_03136_inbound_connection_timed_out.htm”>Inbound connection timed out tips</a>
<a href=”http://download.oracle.com/docs/cd/B28359_01/network.111/b28316/troublestng.htm”>Troubleshooting Oracle Net Services</a>

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