Ubuntu 16.04 both wifi and bluetooth are unstable.

[zhdsmy]

I installed ubuntu 16.04 on my lenovo yoga 13, and I found my laptop wifi always can't work after reboot. I had to re-enable the wifi hardware in my windows system, because it show an network error trayicon in my statusbar. Then I reboot to linux, wifi works but unstable. The bluetooth works normally, but wifi and bluetooth can't work together.

Then I try to install the wifi driver and bluetooth driver in this repository, but It had no improvement.

The linux kernel is 4.4.

[CaptainFuzzyFace]

The wifi and bluetooth have always been an issue on my Yoga 13. Under 15.10 I just set a ping running and that seemed to sort out the wifi, but since I upgraded to 16.04 last night, my wifi is proving very slow and erratic.

[stefanthorpe]

Hi, I was able to stabilize my wifi by setting MTU to 1500, disabling power save and finally setting link aggregation to on. This link should help. http://askubuntu.com/questions/616119/unstable-wireless-with-intel-7260-iwlwifi-after-upgrade-to-15-04 Still having issues with bluetooth

[zhdsmy]

Update: I upgrade kernel to (v4.6-yakkety or newer) from http://kernel.ubuntu.com/~kernel-ppa/mainline/ My wifi problem nearly solved (using rtl8xxxu driver), bluetooth still unstable。

[damianfanaro]

Hi,

In my case, the work around was to unload and load again the 'rtl8xxxu' module after every reboot.

Here is the command:

sudo rmmod rtl8xxxu && sudo modprobe rtl8xxxu

I'm running Linux Mint 18 (Sarah) - Kernel 4.4.0-21-generic. Laptop: Lonovo Yoga 13

On previous Kernel versions I had to install the driver (rtl8723au) manually.

I hope this issue to be fixed on future Kernel releases.

[TRTL4LIFE]

Reloading the module improves my WiFi drastically too. Goes from one to two or three bars, and the download/upload speed increases by a lot. This is on Elementary OS (Ubuntu 16.04).

[lwfinger]

This repo does NOT cover any part of rtl8xxxu. If you want any help with that driver, please report your problems at linux-wireless@vfer.kernel.org. The author of rtl8xxxu reads that list.

[unhammer]

Hm, I did notice worsening on the newer kernels (ie. after Ubuntu 16.04). I've only used rtl8723au from this repo, not the bluetooth driver, but after 16.04, the new linux kernel now notices my bt (where before it never noticed it), and at the same time, wifi dropped more often (still using rtl8723au for wifi). Now trying turning off power saving on the wifi using https://github.com/lwfinger/rtl8723au/issues/36#issuecomment-243066008 , which seems to help so far.

[afro-coder]

@damianfanaro I was on the same kernel version I couldn't find a fix btw which kernel branch did you install it from . For the bluetooth part.

[damianfanaro]

@leon9923, I didn't install it from any specific branch. Btw, I'm running 4.4.0-36-generic and now I don't need to reload the module again after every restart. I will post the full laptop specs later on.

[Fthi-S3074641]

Just the following command:

echo "options iwlwifi 11n_disable=1 bt_coex_active=0 power_save=0 auto_agg=0 swcrypto=1" | sudo tee /etc/modprobe.d/iwlwifi.conf > /dev/null

It worked for my ubuntu 16.04 OS.

[joeybronzoni]

Thanks everyone. I have been troubleshooting my wifi situation for two weeks and finally have it where it should be. I run a duel boot windows 10 and Ubuntu 16.04 on an HP 15-ba018wm. I am a really-really new Linux user but the Linux community makes it worth it. Fthi-S3074641's suggestion put the nail in the coffin for me. I've installed drivers and fiddled with most suggestions that were current. After getting my wifi to work it was very unstable, but after testing for the past few hours it seems to be steady. Thanks for the solution!

[jitendra3109]

I have been troubleshooting my wifi situation for two weeks and finally have it where it should be. I run a dual-boot Windows 10 and Ubuntu 16.04 on an HP Pavilion g4 series.

I do similarly a problem with wifi random goes disconnect.

I've installed drivers and fiddled with most suggestions that were current.

Hey! @josephskrzysowski How did you solve? Which drive do you install? Can you please post here?

[Fthi-S3074641]

run the command (look at the comments above) in the terminal and see if it works for you.

[jitendra3109]

Thanks, @Fthi-S3074641 to giving suggestion but it won't work.

[joeybronzoni]

Hey @jsroyal, sorry for the delayed response. I'm really new to this and currently just trying to keep my head above water in this bootcamp I'm attending. I actually am still struggling with this issue. It seemed like my Internet speed was consistently between 30-48mbp and now it has been all over the place. its between 3 -25mbp. And I tried so many different things that I dont remember which driver it was. But When I get back to my house I'll go through my history that i saved from my terminal and comment here for you.

[jitendra3109]

@josephskrzysowski Thank you for do some job for me. But I can not see where is your CLI history? May I please see please post here.I do have experience but it has already bug reported to Ubuntu org and still do not fixed. If somebody fixed then I want to know because I try every trick available on the internet. Also, install some driver but still face lots of issue of disconnection wifi.

So please can you post your CLI history of command if you do not remember. If you do not find then, Good night. Night watcher.

[polesapart]

To anyone landing here via google search (as me) and having issues with Intel wifi & bluetooth, normally passing bt_coex_active=0 to iwlwifi is enough. Other suggested options, although necessary in some circunstances, might as well degrade wifi performance.