Ubuntu
wireless-regdb package

  1. Vivid (15.04)
  2. Bug #1437913
  3. Comment #12

Comment 12 for bug 1437913

Revision history for this message
Jeremy Jao (myramenisgone) wrote : Re: Wifi unstable on vivid with Intel 7265 (Thinkpad X250)

I've had the same problem here.... I have a Thinkpad T450s since 5/1/2015 with the same chip (though linux wants the 7265D ucode though). It was unstable, even when upgrading to the 4.0.1 mainline kernel. What actually kept things stable is by disabling wireless-n.

All the details of how I fixed it from other people:
http://www.reddit.com/r/thinkpad/comments/34ln2h/t450s_ubuntu_1504_unstable_wifi/

Pretty much.... I had to get the latest 7265 ucodes and put it into /lib/firmware:
- sudo rm /lib/firmware/iwlwifi*
- sudo cp /path/to/iwlwifi-7265*-12.ucode /lib/firmware/.
- reboot....

Normal browsing seemed to be more stable but things like streams, speed tests, and youtube would tank the connection.

Then I had to disable wireless-n:
echo 'options iwlwifi 11n_disable=1' | sudo tee -a /etc/modprobe.d/iwlwifi.conf

now it's completely stable, but I have to lose wireless-n as a result. It's not your fault.... It's Intel's...