Wifi unstable with AR9565 network adaptor

Asked by Laurens Kils-Hütten on 2017-05-01

Since I think 14.10 I am struggeling to get a reliable wifi connection. Now finally I found a solution here:

https://ubuntuforums.org/showthread.php?t=2358900&p=13634983#post13634983

I just hope people are aware of this problem, and that it can get fixed in the distro, as it's been super annoying...

Keep up the good work,

Laurens

Question information

Language:
English Edit question
Status:
Answered
For:
Ubuntu network-manager Edit question
Assignee:
No assignee Edit question
Last query:
2017-05-02
Last reply:
2017-05-02

What is the output of:

sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list; sudo iwlist scan | egrep 'chan|ssid'

Thanks

Laurens Kils-Hütten (lkh-c) said : #2

Am Mo, 1. Mai, 2017 um 11:28 schrieb actionparsnip
<email address hidden>:
> Your question #630602 on network-manager in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/network-manager/+question/630602
>
> Status: Open => Needs information
>
> actionparsnip requested more information:
> What is the output of:
>
> sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list; sudo
> iwlist scan | egrep 'chan|ssid'

  *-network
       Beschreibung: Kabellose Verbindung
       Produkt: QCA9565 / AR9565 Wireless Network Adapter
       Hersteller: Qualcomm Atheros
       Physische ID: 0
       Bus-Informationen: pci@0000:02:00.0
       Logischer Name: wls2
       Version: 01
       Seriennummer: 30:52:cb:39:76:01
       Breite: 64 bits
       Takt: 33MHz
       Fähigkeiten: pm msi pciexpress bus_master cap_list rom ethernet
physical wireless
       Konfiguration: broadcast=yes driver=ath9k
driverversion=4.10.0-20-generic firmware=N/A ip=192.168.2.129 latency=0
link=yes multicast=yes wireless=IEEE 802.11
       Ressourcen: irq:18 memory:90500000-9057ffff
memory:90580000-9058ffff
  *-network
       Beschreibung: Ethernet interface
       Produkt: RTL8111/8168/8411 PCI Express Gigabit Ethernet
Controller
       Hersteller: Realtek Semiconductor Co., Ltd.
       Physische ID: 0.1
       Bus-Informationen: pci@0000:03:00.1
       Logischer Name: ens3f1
       Version: 12
       Seriennummer: 30:65:ec:8f:61:af
       Größe: 10Mbit/s
       Kapazität: 1Gbit/s
       Breite: 64 bits
       Takt: 33MHz
       Fähigkeiten: pm msi pciexpress msix vpd bus_master cap_list
ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd
autonegotiation
       Konfiguration: autonegotiation=on broadcast=yes driver=r8169
driverversion=2.3LK-NAPI duplex=half firmware=rtl8411-2_0.0.1 07/08/13
latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       Ressourcen: irq:266 ioport:1000(Größe=256)
memory:90404000-90404fff memory:90400000-90403fff
  *-network:0
       Beschreibung: Ethernet interface
       Physische ID: 1
       Logischer Name: virbr0
       Seriennummer: 52:54:00:84:1a:90
       Fähigkeiten: ethernet physical
       Konfiguration: broadcast=yes driver=bridge driverversion=2.3
firmware=N/A ip=192.168.122.1 link=no multicast=yes
  *-network:1 DEAKTIVIERT
       Beschreibung: Ethernet interface
       Physische ID: 2
       Logischer Name: virbr0-nic
       Seriennummer: 52:54:00:84:1a:90
       Größe: 10Mbit/s
       Fähigkeiten: ethernet physical
       Konfiguration: autonegotiation=off broadcast=yes driver=tun
driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair
speed=10Mbit/s
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.04
Release: 17.04
Codename: zesty
Linux gimli 4.10.0-20-generic #22-Ubuntu SMP Thu Apr 20 09:22:42 UTC
2017 x86_64 x86_64 x86_64 GNU/Linux
0: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: hci0: Bluetooth
 Soft blocked: yes
 Hard blocked: no
lo Interface doesn't support scanning.

virbr0 Interface doesn't support scanning.

ens3f1 Interface doesn't support scanning.

virbr0-nic Interface doesn't support scanning.

>
> Thanks
>
> --
> To answer this request for more information, you can either reply to
> this email or enter your reply at the following page:
> https://answers.launchpad.net/ubuntu/+source/network-manager/+question/630602
>
> You received this question notification because you asked the
> question.

So, what is the question here? Does the fix in the link you gave not work?

Laurens Kils-Hütten (lkh-c) said : #4

Yes, the fix seems to work, wifi has been stable throughout, since I
applied the fix yesterday. I suppose that should be good news for quite
a few users.

My point is, that I really hope this issue gets cared for upstream. To
my impression this problem has been around for almost two years now, and
has really been sort of a show stopper for Ubuntu on my Acer ES1-311.

I googled to find a solution many times before, and found that the issue
seems to have been brought up over and over, however any of proposed
workarounds *so far* seemed to be misleading and basically didn't work.

So for me, this issue seems to be solved - so I hope this fix will now
propagate to anyone else, who migth be affected.

Anyway,

thanks for your support!

Laurens

Am 02.05.2017 um 08:53 schrieb actionparsnip:
> Your question #630602 on network-manager in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/network-manager/+question/630602
>
> Status: Open => Needs information
>
> actionparsnip requested more information:
> So, what is the question here? Does the fix in the link you gave not
> work?
>

You could report a bug with your fix as a solution

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