Change WiFi channel from 11 to 108

My friend and I use our MacBooks from a local coffee shop sitting at the same table. My Wifi connection is much worse than hers is. Using option + click on the 🛜 menu, which reveals network information, I see that we are on different channels: - 108 (5 GHz 80 MHz) works fine for my friend - 11 (2.4 GHz 20 MHz) is slow for me I would like to reconnect on chanel 108, to match her configuration. Hopefully this will improve my connection. **Things I've tried** Per [Apple's support forums](https://discussions.apple.com/thread/253936398?sortBy=best) , I tried this command:

sudo /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport --channel=108

This command has no immediate effect. Repeating the command with the -c flag, which shows the channel number, indicates that it stays at 11. However, if I repeat the command with the -z flag, which disconnects the connection, the channel *does* become 108, but only briefly. When I reconnect to the WiFi, it reverts to channel 11. When I scan all networks with the -s flag, I see two items listed with the same SSID, one at channel 11 and one at 108. So, the channel I want is "right there" and my laptop just isn't using it. Someone else on Stack Exchange [asked a similar question](https://apple.stackexchange.com/questions/100383/wifi-channel-selection) years ago, and was told that the channel simply cannot be changed except at the WAP. Naturally in a coffee shop I don't have access to the WAP. As my friend is able to use the other channel it seems to me it's a matter of configuration in our laptops. How can I change the channel? I am on a MacBook Pro running Sonoma 14.2.1