How to fix the Oracle error ORA-06722: TLI Driver: connection setup failure?

In this post, you’ll learn more about the Oracle ErrorORA-06722: TLI Driver: connection setup failure with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-06722: TLI Driver: connection setup failure

Reason for the Error ORA-06722: TLI Driver: connection setup failure

The remote TLI server rejected the connection request, and the client was unable to retrieve an error code or message.

How to fix the Error ORA-06722: TLI Driver: connection setup failure ?

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

Contact your customer support representative.