I've got a problem where sometimes Active Directory users are presented with a CAPTCHA at login, but the CAPTCHA data isn't being accepted.
The only way the user is able to log in, is when I reset the failed login count.
I've seen the user type the CAPTCHA and we have both agreed what the correct entry is.
How do I troubleshoot what is going wrong?
After me migrated to Oracle we are also facing this issue.
Probably issue is caused by this bug: