I also have this on the latest Trusty nightly. Turning off PM fixes it. I have a 50/10Mbit connection here, and I start at 20Mbit and quickly fall all the way to ~2Mbit. This is over multiple sequential download (e.g apt-get upgrade). This is even worse if you are connected over a mobile hotspot, for instance an iPhone personal hostspot. I get one webpage to load in that case, but the DNS packets and MBDN end up putting the link into a very slow state, ~20Kbps or less.
Turning off PM and blacklisting it, I can constantly pull the 50/10. I have yet to test the hostspot fix, I will be able to tomorrow. Also, I noticed that with PM on (and even off but less so) , there was very very high excessive TX retry (48k in 20 minutes) and the computer is bouncing between two channels broadcasting the same BSSID (Apple Airport Extreme multi-ap network), -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1289961 Title: Power management causes Intel wifi 7260 slowness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1289961/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
