Meru Technical Note - The Controller time does not sync with NTP server time

The Controller time does not sync with NTP server time.

RELATED PRODUCTS: Controller

RELATED SOFTWARE VERSIONS: N/A

KEYWORDS: controller, NTP server, syntax

STEPS TO BE TAKEN FOR TROUBLESHOOTING:

STEP 1: Verify the NTP server information using the syntax
#show ntp-server
a) If the output shows the NTP updates are disabled try NTP sync using the following syntax
#ntp sync
b) Reboot the controller

STEP 2: If still the NTP server time is not updated in the controller check the time difference.
If the difference is more than 30minutes, disable NTP in the controller
# no ntp-server
This will disable NTP updates in the controller.

STEP 3:  Manually set the date and time on the controller to the current time.
1: Type “date” to see the currently configured time.
2: Type “calendar set MM/DD/YYYY HH:MM:SS”, where MM/DD/YYYY is the month/day/year specification and HH:MM:SS is the hour: minute: seconds specification.

STEP 4: Enable NTP again
# start-ntp
# ntp server x.x.x.x (IP Address of the NTP server)
# ntp sync
# reload controller

RESOLUTION:

Disable NTP in the controller. Set the current time manually in the controller. Enabling NTP again will have NTP server time in the controller.

ROOT CAUSE: The reason is that if the Current time on the controller and the NTP time were greater than 30 minutes which will fail to sync.