Last week I got pinged with an interesting question by a user: why do I see kpolnb: Logon failed because the client is missing the KZTVOV_KPCLOG_O9L_LP capability flag.
in my Oracle Database alert.log and cannot log in? This is indeed a curious message in the alert log and warrants a post as to what’s going on. To keep it short for the impatient:
Either change your user password to <=30 bytes or upgrade your database client to 23c+ and you will be good to go.
Continue reading “Oracle Database: why do I see “Logon failed because the client is missing the KZTVOV_KPCLOG_O9L_LP capability flag.” in the alert.log?”