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I recently installed Ubuntu 12.04 on my Dell Inspiron 15 7537. It was working fine but after installing some updates (Not sure which ones) I rebooted and could no longer connect to wi-fi. It's a dual boot with Windows 8.1 and wi-fi works fine for that and Ubuntu does let me connect using a wired connection.

After reinstalling it's still giving me the issue which makes me think it's a hardware fault but the fact it works in Windows is making me doubt that.

One thing worth noting is that when I start Ubuntu it displays the following:

iwlwifi 0000:02:00.0z request for firmware file 'iwlwifi-7200-7.ucode' failed
iwlwifi 0000:02:00.0z no suitable firmware found!

Any help would be much appreciated.

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2 Answers 2

Reset to default
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Please open a terminal and do:

cd /lib/firmware
sudo wget https://git.kernel.org/cgit/linux/kernel/git/egrumbach/linux-firmware.git/plain/iwlwifi-7260-7.ucode

Reboot and tell us if the wireless is working.

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  • This has solved the issue, can't believe it was something so simple. Thanks for your help!
    – user254006
    Mar 2, 2014 at 16:52
  • @chili555 is that reinstalling the whole linux-firmare package won't help.
    – Avinash Raj
    Mar 2, 2014 at 16:57
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Try to reinstall linux-firmware package by running,

sudo apt-get install --reinstall linux-firmware

After installing it, reboot your pc.

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