I have a new Oracle 19c installation on Windows 10.
I created a new non-container database and created various users and imported database exports.
User logins work fine for a number of days.
Then after what appears to be a random number of days, I get "ORA-01017: invalid username/password; logon denied" errors.
I can only connect to the database using sysdba.
I can't find anything obviously wrong in the user info or DEFAULT profile.
I am having to recreate the database, user, schemas etc. to get things running again.
This has happened three times now since I did the original install.
I have even reinstated Oracle 19c.
The most recent occurrence happened 6 days after everything was reinstated.
My machine is being rebooted on a daily basis.
It has been many years since I last asked a question online re Oracle problems so not sure where best to ask for help now.
Could someone please point me in the right direction?
Thanks.