How to enforce a Wifi frequency?


sometimes my Wifi connection drops.

IT support says that my client (Fedora Workstation 34) every now and then tries to connect to the 5 GHz frequency which has a lower power than the 2.4 GHz frequency.

The settings of my connection shows:
Supported frequencies: 2.4 GHz / 5 GHz

But doesn’t allow me to choose between the two.

How can I check that, and how can I enforce the 2.4 GHz band?


nmcli connection modify [MYSSID] “bg”


P.S. The guide says that compatibility depends on the driver.

How can I figure out if my driver is compatible?

I am using the iwlwifi driver. Here is the output of “lshw”:

description: Wireless interface
product: Wireless-AC 9560 [Jefferson Peak]
vendor: Intel Corporation
physical id: 14.3
bus info: pci@0000:00:14.3
logical name: wlp0s20f3
version: 10
serial: d0:c6:37:d9:cc:31
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.11.21-300.fc34.x86_64 firmware=46.6f9f215c.0 9000-pu-b0-jf-b0- ip= latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:16 memory:a4410000-a4413fff