oracle - ORA-03111: Break received on communication channel -

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i consistently getting error when connecting oracle db server - don't know version - using odp.net connector (v.4.121.2.0). have idea why?

thanks

oracle.manageddataaccess.client.oracleexception (0x80004005): ora-03111: break received on communication channel ---> oracleinternal.network.networkexception (0x00000c27): ora-03111: break received on communication channel    @ oracleinternal.network.readerstream.read(orabuf ob)    @ oracleinternal.ttc.orabufreader.getdatafromnetwork()    @ oracleinternal.ttc.orabufreader.read(boolean bignoredata)    @ oracleinternal.ttc.ttcdatatypenegotiation.readresponse()    @ oracleinternal.serviceobjects.oracleconnectionimpl.dodatatypenegotiation()    @ oracleinternal.connectionpool.poolmanager`3.get(connectionstring cswithdiffornewpwd, boolean bgetforapp, string affinityinstancename, boolean bforcematch)    @ oracleinternal.connectionpool.oraclepoolmanager.get(connectionstring cswithnewpassword, boolean bgetforapp, string affinityinstancename, boolean bforcematch)    @ oracleinternal.connectionpool.oracleconnectiondispenser`3.get(connectionstring cs, pm conpm, connectionstring pmcs, securestring securedpassword, securestring securedproxypassword)    @ oracle.manageddataaccess.client.oracleconnection.open()    @ system.data.common.dbconnection.openasync(cancellationtoken cancellationtoken)

odp.net, managed driver supports connecting oracle db server 10.2 or higher. not support db 10.

check if case.


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