How to fix the Oracle error ORA-03136: inbound connection timed out?

In this post, you’ll learn more about the Oracle ErrorORA-03136: inbound connection timed out with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-03136: inbound connection timed out

Reason for the Error ORA-03136: inbound connection timed out

Inbound connection was timed out by the server because user authentication was not completed within the given time specified by SQLNET.INBOUND_CONNECT_TIMEOUT or its default value

How to fix the Error ORA-03136: inbound connection timed out ?

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

1) Check SQL*NET and RDBMS log for trace of suspicious connections. 2) Configure SQL*NET with a proper inbound connect timeout value if necessary.