How to fix the Oracle error NCR-03018: NCRO: Failed to make RSLV connection?

In this post, you’ll learn more about the Oracle ErrorNCR-03018: NCRO: Failed to make RSLV connection with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NCR-03018: NCRO: Failed to make RSLV connection

Reason for the Error NCR-03018: NCRO: Failed to make RSLV connection

Cause: Failure to make RSLV connection usually means that the name resolution failed or the resolved TNS address is bad.

How to fix the Error NCR-03018: NCRO: Failed to make RSLV connection ?

You can fix this error in Oracle by following the below steps

Action: Make sure that the name is in TNSNAMES.ORA and that it is set to the correct TNS address.