(Solved)Wifi driver installed, but device not recognized

[luczkowv]

I've just installed Debian 7.4. The wireless card is an Intel AC-3160.
I ran modprobe iwlwifi with no problems.
Result of lsmod:

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lsmod | grep iwlwifi
iwlwifi 166761 0
mac80211 192806 1 iwlwifi
cfg 80211 137243 2 mac80211, iwlwifi

But I can't get wlan0 to actually start:

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ifup wlan0
Ignoring unknown interface wlan0=wlan0

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ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device

Any idea what's going wrong?

[dibl]

Take a look at dmesg output to see if the device is being recognized by the system.

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dmesg | most

[stevepusser]

Probably you are missing "firmware-iwlwifi". It's in the non-free section, so add that (non-free) to the end of Debian repository address you are using (usually you have to edit as root the text file /etc/apt/sources.list), then update apt, then install.

[luczkowv]

Okay, I managed to solve it by installing iwlwifi from backports. I already had the firmware installed from firmware-iwlwifi_0.41_all.deb.