Intel Corporation Wireless-N 7260 card dies randomly
You need to disable the power management and possibly the 802.11n extension. These changes worked for me.
For the power management create a file in
sudo gedit /etc/pm/power.d/wireless
with the following content
#!/bin/sh
/sbin/iwconfig wlan0 power off
and make it executable:
sudo chmod +x /etc/pm/power.d/wireless
To disable the 11n extension, try the following
sudo su
echo "options iwlwifi 11n_disable=1" >> /etc/modprobe.d/iwlwifi.conf
You need to reboot
after those changes. Running iwconfig
should show:
wlan0 IEEE 802.11abg
and
Power Management:off
What definitely worked for me was to upgrade to one of the latest kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc4-utopic/