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Home > Success Center > Server & Application Monitor (SAM) > SAM - Knowledgebase Articles > ORA-03135: Connection Lost Contact

ORA-03135: Connection Lost Contact

Created by Andy Ng, last modified by Shane Horgan on Nov 21, 2017

Views: 1,210 Votes: 0 Revisions: 4

Updated July 11, 2016


This article provides brief information on the following error:

ORA - 03135: Connection Lost contact

SQL plus from Orion server is able to connect to Oracle server.


All Versions of SAM



SolarWinds Oracle Client lite is still installed, and at times, and can cause issues with drivers.



Verify that the following directory does not exist or it is empty on all polling engines
C:\Program Files (x86)\Solarwinds\Orion\APM\OracleClient\

If it is not empty, stop all Orion Services and remove this directory before you continue





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