Looking for logging into the Ok Incorrect site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Ok Incorrect site. After that you can login as usual with your login credentials.
https://www.strato.de/faq/hosting/das-ftp-programm-kann-keine-verbindung-zum-server-herstellen-fehler-530-login-incorrect/
https://forum.ubuntuusers.de/topic/vsftpd-530-login-incorrect/
https://bbs.archlinux.org/viewtopic.php?id=165682
https://askubuntu.com/questions/413677/vsftpd-530-login-incorrect
http://forum.nas-forum.org/index.php?page=Thread&threadID=536
https://preiswerter-webserver-de.bitpalast.net/faq/was_bedeutet_ftp_fehler_530_login_incorrect
https://www.linuxquestions.org/questions/linux-newbie-8/530-login-incorrect-in-ftp-server-947902/
https://talk.plesk.com/threads/ftp-problem-530-login-incorrect.345569/
https://administrator.de/forum/freeradius-activedirectory-auth-login-incorrect-rlm-chap-clear-text-password-not-available-379269.html
https://community.hpe.com/t5/Operating-System-OpenVMS/Anonymous-FTP-responds-quot-530-Login-incorrect-quot/td-p/3684092
https://forum.filezilla-project.org/viewtopic.php?t=41812
https://kb.paessler.com/en/topic/72789-ftp-sensor-set-to-error-on-login-incorrect
https://www.linuxmintusers.de/index.php?topic=53510.0