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ORA-03135: connection lost contact

Rajeshwaran JeyabalSep 18 2010 — edited Nov 2 2010

We are using 11gR1 (11.1.0.6.0) client to connect with Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 server.

When connecting to the server from my machine, I am facing this below error if my connection is idle for 7 min's

rajesh@10GR2> select * from dual;
select * from dual
*
ERROR at line 1:
ORA-03135: connection lost contact
Process ID: 0
Session ID: 130 Serial number: 21071

ERROR:
ORA-03114: not connected to ORACLE

But however the same is not happening with my colleague machine connecting to the same Oracle server using the same 11gR1 (11.1.0.6.0) client and idle for even more than 1 hour. Is that some improper configuration with my machine?

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Locked on Nov 30 2010

Added on Sep 18 2010

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