Hi guys,
I hope you can help me understand the behavior of the 8265 wireless card.
Recently I was testing my wireless configuration. The previous config was only using 20MHz per AP. I wanted to change the channel width to 40MHz on my 11ac. On my WLC I set my AP to 40MHz. The AP summary seemed to be correct since the APs showed channel bonding. The frequency showed on my Acrylic WiFi Home seemed to be correct too, the AP bonds 2 channels.
I tested the 40MHz channel width with 3 laptops, 1 Thinkpad T480S and 2 Thinkpad T470S. Both T480S and T470S are using Intel 8265, with T470S running on 20.10.0.6 and T480S running on 20.10.2.2. Only 1 T470S is able to 'read' the 40MHz, while the other 2 still 'read' the 20MHz. I know this by speed indicated on WiFi Status. Any idea why? All settings are the same. The only setting I could think of to impact this is Fat Channel Intolerance, which is I already disabled.
Thank you.