HomeOracleOracle Error ORA-12658: ANO service required but TNS version is incompatible

Oracle Error ORA-12658: ANO service required but TNS version is incompatible

Oracle Error Message

ORA-12658: ANO service required but TNS version is incompatible

Reason for the Error

A client process that is running an earlier version of TNS attempted to connect but the connection failed because the server process required that an ANO service (authentication, encryption, etc.) be used.

Solution

Relink the calling executable and retry the connection or eliminate the requirement that the service be used on the server side.

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