How do I troubleshoot slow wifi speed on Ubuntu 20.04? [duplicate]

First in your router change 802.11bgn to 802.11bg.

Second change the wep encryption to just wpa2 (CCMP)(AES) not (TKIP) if you have that option it will work best.

Third set your wireless channel in the router to 1 or 11 then save the router configuration and reboot it.

Fourth go into network manager at top right corner of the screen and click on edit connections>wireless tab and set IPV6 to ignore.

Now open the terminal CTRL+ALT+_T then copy and paste the following code one line at a time for accuracy:

echo "options rtl8192ce swenc=1 ips=0" | sudo tee /etc/modprobe.d/rtl8192ce.conf
sudo modprobe -rfv rtl8192ce
sudo modprobe -v rtl8192ce

I had the same problem - I was lazy so I did only No. 4

"go into network manager at top right corner of the screen and click on edit connections>wireless tab and set IPV6 to ignore"

...and it worked! Thanks

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