Checking for client, we will see "bgn" radio mode that represent the maximum mode/band that the client is supported during the association time rather than showing the exact data rate of the client after associated with AP.
In-order to check the exact data rate of a client either you need to click on the client host name or run a command on the AP CLI:
- show wireless clients statistics
It should be useful an additional column on cnMaestro under the clients tab for data rate.
thanks