Oracle Error ORA-12217: TNS:could not contact PREFERRED_CMANAGERS in TNSNAV.ORA

Oracle Error Message

ORA-12217: TNS:could not contact PREFERRED_CMANAGERS in TNSNAV.ORA

Reason for the Error

There is a syntax error in the PREFERRED_CMANAGERS entry, or addresses specified are wrong, or the intended Connection Managers are unavailable.

Solution

Check the PREFERRED_CMANAGERS entries in the client’s TNSNAV.ORA file and correct them or talk with your network administrator to determine if the specified Connection Managers are available. Verify that the Interchanges are active by using the INTCTL STATUS command.

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