In this post, you’ll learn more about the Oracle ErrorNCR-03009: NCRO: Protocol version mismatch with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
NCR-03009: NCRO: Protocol version mismatch
Reason for the Error NCR-03009: NCRO: Protocol version mismatch
Cause: Client and server NCRO layers are at incompatible versions levels.
How to fix the Error NCR-03009: NCRO: Protocol version mismatch ?
You can fix this error in Oracle by following the below steps
Action: Upgrade to latest NCRO version.