If enabled then only those sessions that are established via a persistent login will be established and no new persistent logins may be created. If disabled then additional persistent and non persistent logins may be established. Fix: (1) GPO: Computer Configuration\Administrative Templates\System\iSCSI\General iSCSI!Do not allow additional session logins (2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\iSCSI!RestrictAdditionalLogins