If the Aruba sensor can reach 800 Mbps, and your laptop only 400, it's likely a limitation on your laptop. What type of laptop are you using? Also, how do you determine the speed? Is that the connection speed in the client or AP? Or is that an iPerf? Speedtest?
The sensor has an "802.11 n/ac dual-band Wi-Fi (2.4 & 5 GHz) with dual-stream MIMO", and if you reach half of the throughput with your laptop it can be that it is only a single stream device, or that your laptop falls back to 2.4GHz instead of 5GHz.
It is really hard from a distance to determine what is happening here, but there is very likely an explanation, and it is likely in the client capabilities/driver/settings. Do you have an Aruba partner or someone else with experience on this topic that you can consult?
You should type "show ap association mac <client mac address>" to see the client capabilities.
what was the final speed reached here?
At Aruba, we believe that the most dynamic customer experiences happen at the Edge. Our mission is to deliver innovative solutions that harness data at the Edge to drive powerful business outcomes.
© Copyright 2021 Hewlett Packard Enterprise Development LPAll Rights Reserved.