You notice that the time of the SSIM appliance is drifting more than a few minutes from the NTP controlled times on the network
There are some restrictions in the ntp.conf file that is created when you setup the NTP configuration in the SSIM Web Configuration page. You will need to remove these restrictions.
Note: This is only for Security Information Manager v4.5 or Security Information Manager v4.6
Original ntp.conf file:
Modify the ntp.conf file and remove these restrictions: nomodify nopeer noquery notrap.
Sample edited ntp.conf file:
the ntp.conf file is located in /etc/ntp.conf