This is a server-side parameter. Adding it to the client-side sqlnet.ora typically has no effect. Ensure you add it to the database server configuration.
Fatal NI connect error 12170. Client connection timed out. expire_time sqlnet.ora 19c
If sqlnet_expire_time shows 10 , you’re good. This is a server-side parameter
Stop firewall drops in #Oracle 19c! 🔥 expire_time sqlnet.ora 19c
SQLNET.EXPIRE_TIME = 10 (minutes)