I just updated my Ubuntu to 22.04.3 LTS and I have lost my Wifi and Ethernet connection. It was working just before the update and my other devices are connecting to the router just fine, so I don't think the router's the problem. I did sudo lshw -C network and it looks like the wireless and Ethernet controllers are detected. I'm no expert, can anyone lend a hand?
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Since I cant connect to the internet, I'll have to try to download the script and bring It in a USB stick tomorrow. Thanks for the advice, I'll tell you once I try! – Dr Love Nov 22 '23 at 20:53
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I fixed it!
Following waltinator's advice (thank you so much!), I entered this question: My wireless/WiFi connection does not work. What information is needed to diagnose the issue?
While I tried several of the methods listed there, what eventually worked was using lshw -C network. This showed that, while my computer detected the ethernet and wireless hardware, these were "unclaimed", which apparently meant that I did not have the right drivers installed.
Next I found 22.04.1 Network Unclaimed. Here, the answer provided by chili555 proved to be useful. I checked my kernel using uname -r and entered this page: https://packages.ubuntu.com/jammy/allpackages. Here, I looked for the package linux-modules-extra-6.2.0-37-generic (this will vary depending on your kernel), and downloaded it and the packages on which it depends (linux-modules-6.2.0-37-generic and wireless-regdb, in my case). I put them in a USB stick, plugged it in my Ubuntu machine and installed all three .deb files using sudo dpkg -i. After restarting my PC, the internet was working once again!
Dr Love
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