I have my authorizers.xml with my user setting in Initial Admin Identity value. I acces the login page, but when I try to access, have this error message: Unable to perform the desired action due to insufficient permissions. Contact the system administrator. I remove the http port from nifi.properties, change the Inital Admin Identity, use the same that is in the Manager DN in nifi.properties, delete the users.xml and authorizations.xml to create again with my user, they are created with policy to add user and roles, but I cannot get the UI in Nifi to add other users and assign roles to them. Any help will be apreciated. Regards PD: Adding screen shots and the autorized code <authorizer> <identifier>file-provider</identifier> <class>org.apache.nifi.authorization.FileAuthorizer</class> <property name="Authorizations File">./conf/authorizations.xml</property> <property name="Users File">./conf/users.xml</property> <property name="Initial Admin Identity">CN=Lxxxxx Axxxxx</property> <property name="Legacy Authorized Users File"></property> <!-- Provide the identity (typically a DN) of each node when clustered, see above description of Node Identity. <property name="Node Identity 1"></property> <property name="Node Identity 2"></property> --> </authorizer> ... View more