After performing a silent installation of the JSA console, the Web UI cannot be accessed using the ai_admin_password variable value specified during the installation.
In some cases when JSA is being installed using auto-install methods, the Admin password is not being set properly. When this occurs, the Admin user will try to login to the QRadar web interface, though authentication will fail without specifying any error. System admins will then have to manually update the Admin password in the QRadar host CLI.
systemctl restart tomcat
If restarting Tomcat does not resolve the problem, reset the Admin password by running:
/opt/qradar/support/changePasswd.sh -a