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... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1437913 Title: Wifi unstable on vivid with Intel 7265 (Thinkpad X250) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1437913/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
