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I am using using Ubuntu 22.04.3 LTS. It was showing wifi but after upgrading, wifi is not showing up. I have tried to run this command:

sudo modprobe 8821ce

But it is giving me error like this:

modprobe: ERROR: could not insert '8821ce': Key was rejected by service
chili555
  • 61,330

1 Answers1

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This has solved the issue.

sudo apt-get install linux-image-oem-20.04
sudo apt-get install linux-headers-oem-20.04

This has solved the issue.