How to fix the Oracle error NZE-28802: invalid mode or data source in configuration file?

In this post, you’ll learn more about the Oracle ErrorNZE-28802: invalid mode or data source in configuration file with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NZE-28802: invalid mode or data source in configuration file

Reason for the Error NZE-28802: invalid mode or data source in configuration file

An invalid mode or data source has been specified in the configuration file (sqlnet.ora).

How to fix the Error NZE-28802: invalid mode or data source in configuration file ?

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

Check the method parameter in the sqlnet.ora file. If the parameter value is correct, then enable tracing to determine the exact error.