-
Check network devices
ifconfig -a -
Check wifi signal strength
iwconfig iwconfig [wlan0] | grep -i signal -
command-line tool giving detailed info on wifi networks and signal strengths
nmcli dev wifi -
wavemon - real-time version with info like
nmcli, of wifi networks and signal strengths; can't figure out how to exit it -- F10 doesn't seem to work -
linssid - similar more graphic version of wavemon
-
fast (
sudo snap install fast): gives download speed using Netflix's speed testing service, https://fast.com -
speedtest (
sudo apt install speedtest-cli): upload and download speed (using Ookla speedtest.net; see https://www.speedtest.net/apps/cli)
Apple has useful suggestions on router settings.
-
they suggest using a common SSID for both 2.4 and 5 GHz bands; that leaves it up to router and devices to balance usage
-
definitely convenient to have a single SSID, if it works. I'm still having trouble with one device that wants to go to GHz 2.4 band when I think it should go to the 5 GHz band.
Look up MAC address to try to identify device: https://dnschecker.org/mac-lookup.php