after upgrade of 20.04 wifi stops working (ultimate-N 6300)

[dieter-erich]

SOLVED! It works! Thank you sooo much, I learned a lot and would never ever have found out by myself! I have to be very careful when upgrading next time!

[jeremy31]

I messed up the first command because of a copy/paste but kernel update issues are rare, I have only had one in 6 years but they do happen

[dieter-erich]

It works!!!! Thank you so much for your expert help and patience! I learned a lot and I am sure that I would not have been able of solving this problem on my own! I must be more careful when upgrading as I must have done something wrong.....

[dieter-erich]

SOLVED!!! Thank you so much Jeremy31! Without your expertise and patience I would never ever been able to solve this problem! I thanked you already in two posts but I do not know why it did not show up. I hope this one does.....

[dieter-erich]

jeremy31 solved my problem! However, when running 'sudo apt update and sudo apt upgrade' the headers are apparently lost and I
always have to re-run the below (adjusted for the new kernel having become installed)!
sudo apt purge backport-iwlwifi-dkms
sudo apt install --reinstall linux-headers-5.8.0-38-generic linux-modules-extra-5.8.0-38-generic
Is there a way to make the change permanent so that I can upgrade normally?
Thanks, D.

[dieter-erich]

Hi,
I am sorry, I somewhat messed up this tread answering to something else. Here is the correct one.
Jeremy31 solved my problem. Thanks again! However, when upgrading the headers are lost and I must re-install them as before.
How can I arrange that the headers are automatically upgraded as well and not deleted?
Thanks, D

[chili555]

How can I arrange that the headers are automatically upgraded as well and not deleted?

Uncle Jeremy may be out for a coffee. He suggests that you do:

sudo apt install linux-headers-generic

You should be all set.