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I upgraded to Ubuntu 20.04 from 18.04 recently. My wifi requires special driver as the builtin rt2800pci driver don't work. So, I downloaded the driver from GitHub. On 18.04, the system used to load the driver every boot. I used to issue this command boot every boot, sudo systemctl restart NetworkManager so the system could recognize the wifi interface. Without this, iwconfig used to recognize the interface but settings could not detect the interface. Now after upgrading, settings could not detect the wifi interface. But iwconfig can easily recognize it. How can I fix it?

Update:

I issued wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info on terminal, and this is the content of wireless-info.txt:

https://paste.ubuntu.com/p/gfKH9HxPNQ/

Akib Azmain Turja
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1 Answers1

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I suggest that you make two changes. First, the package ndiswrapper will not properly drive your wireless device, or any that I am aware of, in any recent; that is, not end-of-life Ubuntu version. Let's remove it:

sudo apt purge ndiswrapper*

And remove it from /etc/modules:

sudo nano /etc/modules

Edit the file so that it only contains:

rtl8188fu

Save (Ctrl+o followed by Enter) and exit (Ctrl+x).

Next, we'll make a change in Network Manager:

sudo nano /etc/NetworkManager/NetworkManager.conf

Change the line managed=false to managed=true. Save and close nano as above. Reboot.

Is there any improvement?

chili555
  • 60,188
  • Sorry, I forget to mention that I have problem with the RT3290 adapter. The buggy driver is rt3290. – Akib Azmain Turja May 10 '20 at 05:16
  • I have updated wireless-info. – Akib Azmain Turja May 10 '20 at 06:36
  • Where is the updated wireless info? It looks just the same. – chili555 May 10 '20 at 10:31
  • Is it same? The first one was without loading the the buggy driver rt3290sta and activating the buggy wireless interface ra0, and the current one is after doing that. I have already removed ndiswrapper and managed=true is already set at NetworkManager.conf by default. – Akib Azmain Turja May 10 '20 at 11:53
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    I don't understand. Is it your goal to use the internal device with the buggy driver rt3290sta or the USB that seems to be working correctly? I recommend that we concentrate on one or the other; not both. – chili555 May 10 '20 at 13:06
  • I want to use the internal device with buggy driver rt3290sta and buggy interface. – Akib Azmain Turja May 11 '20 at 08:50
  • The paste you have above still shows managed=false and ndiswrapper. Again, where is the updated wireless info? If we are trying to get the buggy internal device working properly, please remove the USB, reboot, run the wireless script, paste it and then give us the link. – chili555 May 11 '20 at 15:31
  • I have updated wireless-info again. And this time I read it and see that it shows managed=true and there is no ndiswrapper. – Akib Azmain Turja May 12 '20 at 07:58