Depending on the your settings, VSys Live can "lock out" individual users and/or IP addresses based on login failures or account resets. The VSys Live lockouts tool shows you a list of currently locked-out accounts and IP addresses along with various bits of information about when the lockout started and when it will be released.
Right-click on any lockout here to edit the associated user (if the lockout is an account) or to clear the lockout so the user can log into VSys Live.