Ubuntu 20.04 WiFi RTL8723de very slow

[gary.allan.garibaldi]

I know with Ubuntu 18.04 I was able to select an antenna to use that would speed up my WiFi connection. Is there any way that can be done with the 20.04 system?ThanksGary

[CelticWarrior]

Doesn't the same command work?

[gary.allan.garibaldi]

Tried this with a reboot each time with no change.
echo "options rtl8723de ant_sel=3" | sudo tee /etc/modprobe.d/rtl8723de.confAlso try 1, 2, 3, or 4 to see which works best.

[jeremy31]

Please see the wireless script link in my signature and post results. From what I have seen the extended branch of lwfinger's rtlwifi-new github site doesn't compile in 20.04 and the kernel driver used is rtwpci and that doesn't have an antenna select parameter

[gary.allan.garibaldi]

See attached file.

[jeremy31]

See if it is better after disabling wifi power management with

sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
systemctl restart network-manager.service

[gary.allan.garibaldi]

Thank you Jeremy. That seems to have fix things. I've marked this as solved.