Public bug reported: Gone from 15.04 to 15.10 on a media PC, constantly streaming movies on the 5Ghz since some get choppy on 2.4Ghz. Has worked beautifully for well over a year now on both 15.x releases.
Decided to take the plunge to 16.04, and things were good at first, but I believe there was a firmware update that broke 5Ghz support. After a update (then a reboot), I could (grudgingly) connect to my 5Ghz network, but throughput would drop like a rock even on an apt update/upgrade, to the point where it would stop responding entirely. Had a thought regarding firmware, and decided to force an older rev, so I copied the newest from /lib/firmware/ (iwlwifi-3160-16.ucode) to a backup location and removed it from /lib/firmware/ which forced use of the next newest firmware, iwlwifi-3160-16.ucode, to be loaded. After a reboot, the difference is night and day - no problem connecting to my 5Ghz network again, and throughput is as expected for a solid 5Ghz connection. This is the AC version of this card (first one listed here): https://wikidevi.com/wiki/Intel#abgn.2Bac ``` ~:$ lspci -nn | grep -i intel 02:00.0 Network controller [0280]: Intel Corporation Wireless 3160 [8086:08b3] (rev 83) ``` This is an up to date 16.04, running kernel 4.4.0-28-generic, linux- firmware version 1.158 (although this occurred on 1.157 as well). I'm happy to output more info if needed. ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1602051 Title: 5Ghz link no longer works on 16.04 - iwlwifi Status in linux-firmware package in Ubuntu: New Bug description: Gone from 15.04 to 15.10 on a media PC, constantly streaming movies on the 5Ghz since some get choppy on 2.4Ghz. Has worked beautifully for well over a year now on both 15.x releases. Decided to take the plunge to 16.04, and things were good at first, but I believe there was a firmware update that broke 5Ghz support. After a update (then a reboot), I could (grudgingly) connect to my 5Ghz network, but throughput would drop like a rock even on an apt update/upgrade, to the point where it would stop responding entirely. Had a thought regarding firmware, and decided to force an older rev, so I copied the newest from /lib/firmware/ (iwlwifi-3160-16.ucode) to a backup location and removed it from /lib/firmware/ which forced use of the next newest firmware, iwlwifi-3160-16.ucode, to be loaded. After a reboot, the difference is night and day - no problem connecting to my 5Ghz network again, and throughput is as expected for a solid 5Ghz connection. This is the AC version of this card (first one listed here): https://wikidevi.com/wiki/Intel#abgn.2Bac ``` ~:$ lspci -nn | grep -i intel 02:00.0 Network controller [0280]: Intel Corporation Wireless 3160 [8086:08b3] (rev 83) ``` This is an up to date 16.04, running kernel 4.4.0-28-generic, linux- firmware version 1.158 (although this occurred on 1.157 as well). I'm happy to output more info if needed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1602051/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
