How to fix the Oracle error ORA-12229: TNS:Interchange has no more free connections?

In this post, you’ll learn more about the Oracle ErrorORA-12229: TNS:Interchange has no more free connections with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12229: TNS:Interchange has no more free connections

Reason for the Error ORA-12229: TNS:Interchange has no more free connections

One or more Interchanges along the path to the destination desired has no more free connections available to be used for this call.

How to fix the Error ORA-12229: TNS:Interchange has no more free connections ?

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

Try again later when the Interchanges are less busy, or contact your network administrator to have him determine which interchange it is, and increase the number of connections available on that interchange.