We are actively working on making LogicMonitor resilient/adaptable to IP address changes primarily but not exclusively caused by DHCP-assigned IP addresses. Currently, if you have Meraki Access Points and you can neither assign a static IP nor obtain the FQDN, you’ll need to consider automating updates to the system.hostname when the IPs change or stopping data collection for the ping DataSource for a dynamic resource group that contains these devices.
Please contact me if you would like to participate in planning and testing of dynamic IP support.