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I have a new mini-PC Intel NUC N2820 and it has a fairly new wireless controller Intel 7260 (rev 73).

I downloaded the source, compiled and installed it.

But the problem is that during the installation I connected to wireless (in the beginning), entered the password for the wifi, and it even updated during the installation, but failed after the install was complete.

chili555
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KaziQ
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2 Answers2

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Is the driver loading? Check from the terminal:

lsmod | grep iwl

If not, load it and see if the problem is fixed:

sudo modprobe iwlwifi

If that fixes it, let's get iwlwifi to load on boot.

sudo -i
echo iwlwifi >> /etc/modules
exit

Do you have the latest firmware?

ls -al /lib/firmware | grep 7260

The newest is 683236 iwlwifi-7260-7.ucode; the older is smaller, 682892. If you have the older firmware, update it: Intel wireless 7260 driver crashes, how do I work around it?

Finally, look for clues:

dmesg | grep iwl
chili555
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Had the same problem on a Toshiba Portege R30 (with intel wireless 7260, hence requiring the iwlwifi-7260-7.ucode firmware file).

Symptoms: Wifi ok during install of Ubuntu 12.4 from USB stick (alongside and already installed Windows 8.1), but afterwards, when using the installed Ubuntu, no Wifi servers were detected, and hence no wireless internet was available.

lsmod | grep iwl 

showed that the firmware file was not there while:

dmesg | grep iwl

showed also an error message that the firmware could not be found.

I downloaded the required firmware via:

sudo apt-get install linux-firmare

after which the required firmware file "iwlwifi-7260-7.ucode" was now present in: /lib/firmware

Rebooted and the Wifi worked fine.