LoadMaster devices that are issued a license from Kemp 360 Central must be able to communicate with the Kemp 360 Central server through port 443 to maintain the license validity. Each LoadMaster licensed by Kemp 360 Central validates their license daily. If validation fails, the LoadMaster enters a 30-day grace period after which the license expires. A successful validation resets the license to normal.

If SMTP services are configured and the LoadMaster is unable to contact Kemp 360 Central for 20 days, the system sends an email notification daily corresponding to the devices that have failed to validate their license.

Note: It is recommended that you configure SMTP to enable delivery of notifications of systems that are failing.