low wireless Client speed on 8021.11bn

[puneetkandwal1]

Hi, 

I have the following issue with the wireless clients in my setup.

The same client when connected to an access point on 802.11bn gives very low speed and while connecting to another access point on 802.11ac given good speeds.

The access point model is AIR-CAP3702I-B-K9.

I see both SNR and RSSI value as excellent

lower data rates till 6 Mbps have been disabled.

I need to know why my client connected to one access point on 802.11bn and another on 802.11ac.

The access point supports 802.11ac.

[Leo Laohoo]

The client is connected to 2.4 Ghz. Is there any other reason?
Check out the channel utilization, level of co-channel interference where the client is reporting "low speed".
What is the wireless client we're talking about here? (Exact model would be helpful.)
What happens if the wireless client is connected to 5.0 Ghz?
Is this only one wireless client? It's not affecting multiple clients?
Up to 6 Mbps disabled? What about the rest?