This can happen if there is a firewall policy blocking outbound traffic on UDP port 12222 for CAPWAP. To avoid having to reconfigure the firewall, you can configure HiveAPs behind the firewall to communicate with HiveManager Online using HTTP on TCP port 80 instead of CAPWAP UDP port 12222.
There are the two necessary CLI commands:
If outbound traffic must pass through an HTTP proxy server, you can configure HiveAPs to send CAPWAP over HTTP to the proxy server.
To accomplish that, enter these 2 CLI commands: