You have...   perPage='1000',   ...but this should be an integer, try...   perPage=1000,   Otherwise, assuming the equipment has been installed and with current config before 1st September, if there were security events they should be there.   One other thing to try, just in case something weird is going on, add the parameter...   sortOrder='descending'   ...and see if it makes a difference to what you get.   If it's still not working, you may need to open a support case. ... View more