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Since a couple of days, my WiFi card keeps disappearing from Ubuntu once in a while for a couple of restarts. I have attached my system log, does anyone have an idea what the issue could be? Usually, it first says 'device not ready', and after a restart 'no networking devices available'. I have used Ubuntu on this Dell XPS 13 machine for a year now, never had similar issues. Also, a fresh install didn't change anything. Even the live system might not detect the device.

System logfile after disappear and reappear

Thanks a bunch!

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I had the same problem, so I tried installing the newest driver from the intel site. All you need to know is the name of your device and your kernel version. Use uname --all and lspci and download the driver here, than copy it to your /lib/firmware-folder. That worked for me.

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