Hi ColdBlueFire,
How the SM and R200P are getting the IP Address . Are they getting through DHCP or static IP is assigned.
If DHCP is used then the DHCP server should give the DNS address also to the devices. If static IP is used then the DNS is needs to be manually configured on the devices .
DNS is mandatory as the devices needs to connect to the cnMAestro Cloud server which is located in the Amazon AWS.
If you are using on Premises version of cnMaestro then the DNS server is not required as far as the devices can communicate with the cnMAestro on Premises server.
Which software version is used in PMP 450 and cnPilot R200P . Also , please send me the config files of the both to my mail address krishna.reddum@cambiumnetworks.com . I will check the configs to see if they are fine .
If at all going forward you face any connectivity issues with cnMaestro in the device GUI you can go to Tools->DNS test or Ping test and check wheter you are able to reach the cloud.cambiumnetworks.com
Also you can check the Logs->Device Agent Logs to know what exactly is the issue in connecting with the cnMAestro server. Before checking the logs please turn on the debug mode in Configuration->cnMaestro page for the cnMaestro Agent Debug Log Level option
Please refer to the following KB article for more details