We will be perform maintenance during this time which will lead to some downtime.
Make sure your client are configured to reconnect.
If you can't have any downtime, migrate to a dedicated instance prior to this event,
https://www.cloudmqtt.com/blog/2018-11-08-cloudmqtt-migration-between-plan.htmlIf you are having any issues with your instance after the maintenance, try restarting it from the CloudMQTT Console.