How can I get the band (2.4 / 5 GHz) selection back in wifi settings? (ubuntu 20.04)

Question

I upgraded Ubuntu to 20.04 and the setting for preferred WiFi frequency has disappeared. You can see a screenshot of the drop-down menu here:

How can I get this drop down menu back?

@heynnema - I think this is worth an answer, for the benefit of the community. — sancho.s ReinstateMonicaCellio, Aug 18 '21 at 06:24

score 10 · Answer 1 · answered Apr 26 '20 at 15:36

The dropdown menu was removed from the UI (I could not find the reason).

But there is a work-around, by checking the manual of nm-settings:

Locate the targeted WiFi connection profile in /etc/NetworkManager/system-connections/nameofconnection.nmconnection
edit with sudo nano /etc/NetworkManager/system-connections/nameofconnection.nmconnection
Under section [wifi] add following entry
- for 2.4 GHz only band=bg
- for 5 GHz only band=a
save changes and connection should use the new configuration

Or run the command that is posted as a comment on the question (nm-connection-editor in the terminal) — Plumpie, Jul 24 '20 at 08:02

score 8 · Answer 2 · answered Sep 05 '22 at 10:27

8

Credits for @heynnema

To access the settings in a GUI execute nm-connection-editor in a terminal. Then choose your desired connection and click on edit.

Thanks. This did the trick for me!

answered Sep 05 '22 at 10:27

stopal

2 Answers2