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My wifi connection keeps disconnecting frequently. It's pretty exhausting during meetings. I've searched how to resolve this bug and I found that it can be related to the kernel version (22-04-wifi-keeps-disconnecting-for-a-few-seconds-frequently). The actual kernel version is 5.19.0 :

(base) claire@claire:~$ uname -r
5.19.0-32-generic

I keep trying to downgrade the kernel (5.17.5 ?) with Ubuntu Mainline Kernel Installer following this tutorial How to downgrade the Ubuntu kernel.

However I have a problem during the step 3 :

Step 3: When you’ve finished installing the kernel, reboot. Then, on the Grub boot screen, choose “Advanced Options for Ubuntu” and load the downgraded kernel.

While I chose the kernel with Grub, I've got the error : error you need to load the kernel first.

Is it the right thing to do ?

Here the output of lspci -knn | grep Net -A3 :

0000:00:14.3 Network controller [0280]: Intel Corporation Alder Lake-P PCH CNVi WiFi [8086:51f0] (rev 01)
    DeviceName: Onboard - Ethernet
    Subsystem: Intel Corporation Device [8086:0094]
    Kernel driver in use: iwlwifi
Pilot6
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Makk Claire
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    Please [edit] your question and add output of lspci -knn | grep Net -A3 terminal command. This will show your wireless device. Installing an unsupported mainline kernel is not a good choice if even don't know what the problem is. The post you refer to is suggesting to install a newer kernel than it was used at that time in Ubuntu. And the question was about a specific wireless device. It is not a solution for each and every Wi-Fi in any case. – Pilot6 Feb 20 '23 at 17:29
  • Thanks for your answer @Pilot6 , I edit my question with the output :) – Makk Claire Feb 21 '23 at 08:27
  • It should work OK. Disconnections way be related to something else, like too many neighbors, etc. – Pilot6 Feb 21 '23 at 09:04
  • But my colleague, using the same version of ubuntu, next to me in the office, doesn't have this problem at all – Makk Claire Feb 21 '23 at 09:06
  • It could be a hardware problem too. – Pilot6 Feb 21 '23 at 09:08
  • I had the problem with my previous computer, which was dying. I have a new one now. And I have still the problem. – Makk Claire Feb 21 '23 at 09:10
  • It is unfortunate. The device is a bit too new now. – Pilot6 Feb 21 '23 at 09:26
  • What do you mean ? That I can't use ubuntu 22.04 with my laptop ? – Makk Claire Feb 21 '23 at 09:34
  • I mean that it is a new device, kernel support may be not perfect. – Pilot6 Feb 21 '23 at 09:40

1 Answers1

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Some have reported success in editing /etc/modprobe.d/iwlwifi.conf and adding the following line.

options iwlwifi 11n_disable=1 swcrypto=1

You'll need to unload/reload the driver - or more simply restart the system - for the change to take effect.

popey
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