Intel Dual Band Wireless 7260

[galactichitchhiker]

Hi,

I'm trying to find a solution for wifi issues with the card mentioned above. In Mint 17x, I had the option to choose the right driver from the Mint driver manager, but in Mint 18x that option no longer appears: it only offers me the intel-microcode drivers.

In 18.2 Cinnamon, wifi would disconnect every couple of hours, or speed would be reduced drastically and I'd either have to disable wifi and reconnect (several times, sometimes) for it to work, or restart the network manager (or all of the above + restart the router; security is WPA)

In 18.3 KDE, it doesn't seem to disconnect, but speeds do fluctuate quite a lot, and the indicator switches from 5 bars to 1 bar every 30" (even though I'm sitting next to the router).

Is there any way around this?

Code: Select all

iwconfig
lo        no wireless extensions.

wlp1s0    IEEE 802.11  ESSID:"Tercera_Dimension"  
          Mode:Managed  Frequency:2.417 GHz  Access Point: E4:C1:46:AB:BF:DB   
          Bit Rate=72.2 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=50/70  Signal level=-60 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:819   Missed beacon:0

I've downloaded the most recent version of iwlwifi (iwlwifi-7260-ucode-25.30.14.0) and copied it to /lib/firmware/, but it looks like they aren't being loaded:

Code: Select all

dmesg | grep iwl
[    3.768490] iwlwifi 0000:01:00.0: loaded firmware version 17.459231.0 op_mode iwlmvm
[    3.812139] iwlwifi 0000:01:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144
[    3.843938] iwlwifi 0000:01:00.0: base HW address: 10:4a:7d:86:89:1d
[    4.077162] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[    4.078857] iwlwifi 0000:01:00.0 wlp1s0: renamed from wlan0
[ 1375.684413] iwlwifi 0000:01:00.0: Too many chunks: 20
[ 2682.464077] iwlwifi 0000:01:00.0: Too many chunks: 20

Am I missing a step?

I've checked the forums and found several proposed solutions involving backports (https://ubuntuforums.org/showthread.php?t=2317043):

Download backports to desktop, then:

Code: Select all

cd ~/Desktop/backports-4.4-rc2-1
make defconfig-iwlwifi
make
sudo make install

sudo apt-get update
sudo apt-get install git
git clone https://github.com/OpenELEC/iwlwifi-firmware.git
cd linux-firmware/firmware
sudo cp iwlwifi-7260* /lib/firmware

But, of course, I'm on kernel 4.13.0-37, so I'm not sure which backports to use.

Any suggestions would be greatly appreciated. Thanks!