ORA-01017 on an external authetication

Hello,

I have ORA-01017: invalid username/password; logon denied error message when I'm testing the external authentication with SSL.

It was working until a few days without any issueS.

The certificate is still valid.

Can you please give an idea of where to look?

I have recreated the user CLIENT :

create user client identified externally as 'CN=client';

grant create session to "CLIENT";

GRANT SELECT ANY TABLE TO "CLIENT" ;

GRANT SELECT ANY TABLE TO "CLIENT" ;

GRANT CREATE ANY TABLE TO "CLIENT" ;

GRANT UPDATE ANY TABLE TO "CLIENT" ;

GRANT INSERT ANY TABLE TO "CLIENT" ;

GRANT DROP ANY TABLE TO "CLIENT" ;

Thank you,