Arch Linux

xu564856686

Member

Registered: 2016-07-15

Posts: 42

[SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I ran pacman -Syu today, and upgraded to the kernel version 4.9.6-1. After restarting, I cannot connect to the internet. I am unable to search for any WiFi access points.

My network controller listed with lspci -k is
Realtek Semiconductor Co,. Ltd. RTL8192CE PCIe Wireless Network Adapter (rev 01)
Subsystem: ASUSTeK Computer Inc. Device 85e3
Kernel driver in use: rtl8192ce
Kernel modules: rtl8192ce

The output of iw dev wlp3s0 link is:
Not connected.

When I run iw dev wlp3s0 scan | less, I get the message
"command failed: Device or resource busy (-16)"

Last edited by xu564856686 (2017-02-07 16:15:08)

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 8,776

Website

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

How are you attempting to connect?

Please post the output of:

systemctl list-unit-files --state=enabled

Last edited by Head_on_a_Stick (2017-02-05 19:21:19)

---

Jin, Jîyan, Azadî

xu564856686

Member

Registered: 2016-07-15

Posts: 42

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

Restarting did the trick. Anyway, here's the output of systemctl list-unit-files --state=enabled:

UNIT FILE                                    STATE  
autovt@.service                              enabled
clamd.service                                enabled
freshclamd.service                           enabled
getty@.service                               enabled
iptables.service                             enabled
netctl@wlp3s0\x2dHOME\x2d1697\x2d2.4.service enabled
ntpd.service                                 enabled
tor.service                                  enabled
remote-fs.target                             enabled

9 unit files listed.

A while later I came back to my computer and once again, the connection is down. iw dev wlp3s0 scan | less just gives me a blank screen with (END). At this point I am guessing that this is a problem with my ISP or router.

Update: I do have a connection now but it seems to be intermittent.

2nd Update: I lost my connection very soon after booting up and I don't know what to do.

Last edited by xu564856686 (2017-02-06 16:10:20)

xu564856686

Member

Registered: 2016-07-15

Posts: 42

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

OK, so I've tried stopping the clamd, freshclamd, netctl@wlp3s0\x2dHOME\x2d1697\x2d2.4, ntpd, and tor services. Nothing different happened when I searched for APs.

I decided to try using wpa_supplicant, and I followed the wiki example.conf. This is what happened:

$ wpa_supplicant -B -i wlp3s0 -c /etc/wpa_supplicant/example.conf
Successfully initialized wpa_supplicant
nl80211: deinit ifname=wlp3s0 disabled_11b_rates=0
wlp3s0: Failed to initialize driver interface

xu564856686

Member

Registered: 2016-07-15

Posts: 42

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

What is strange, is that after booting up, I can access (about) one web page on Firefox before the connection drops. After running journalctl -xe, I can see repeating messages of "carrier lost".

EDIT: I do see that I have a connection with

sudo iw dev wlp3s0 link

so far. I'm yet unable to connect to or ping a website.

Last edited by xu564856686 (2017-02-06 20:05:22)

xu564856686

Member

Registered: 2016-07-15

Posts: 42

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I have tried running

wpa_supplicant -D nl80211,wext -i wlp3s0 -c <(wpa_passphrase "<ssid>" "<passphrase>")

and it keeps trying to authenticate, but it fails. I'm pretty sure that I put in the correct passphrase.

EDIT: That was because I was trying to run it with sudo. I got a successful connection with wpa_supplicant, but when I tried to ping a website, journalctl kept spamming

wlp3s0: fe80:68ee:96ff:fed9:169a is unreachable, expiring it

along with two occurrances of

wlp3s0: fe80:68ee:96ff:fed9:169a is reachable again

I can't even ping my router.

Last edited by xu564856686 (2017-02-06 21:09:48)

xu564856686

Member

Registered: 2016-07-15

Posts: 42

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I went and deleted my netctl profile and recreated it. I was able to ping websites for a while, but there were problems with packet loss.

Checking the netctl status gives me "active (exited)". My guess as to what is happening, is that I have a bad connection to my router which is dropping every so often, and when it does, the netctl service exits. I'm not sure where to go from this. When I try to restart netctl, I get the "WPA association/authentication failed" error.

Last edited by xu564856686 (2017-02-06 22:20:29)

Jebtrix

Member

Registered: 2016-08-10

Posts: 8

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I am experiencing the EXACT same problem.

Lenovo E425 Laptop

Kernel 4.9.7-1-ARCH
Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device 8195
Kernel driver in use: rtl8192ce       
Kernel modules: rtl8192ce

I also tried disabling ipv6 (ipv6.disable=1) from boot cmd just in case, same behavior. Your lucky to pop off one web page load. Sometimes networkmanager will cycle, disconnecting and re-initializing the wifi connection, sometimes it does not. Its really an odd one.

My systemctl list-unit-files --state=enabled output

org.cups.cupsd.path                         enabled
autovt@.service                             enabled
avahi-daemon.service                        enabled
dbus-org.freedesktop.Avahi.service          enabled
dbus-org.freedesktop.ModemManager1.service  enabled
dbus-org.freedesktop.NetworkManager.service enabled
dbus-org.freedesktop.nm-dispatcher.service  enabled
display-manager.service                     enabled
getty@.service                              enabled
haveged.service                             enabled
lightdm.service                             enabled
ModemManager.service                        enabled
NetworkManager-dispatcher.service           enabled
NetworkManager.service                      enabled
org.cups.cupsd.service                      enabled
ufw.service                                 enabled
avahi-daemon.socket                         enabled
org.cups.cupsd.socket                       enabled
remote-fs.target                            enabled

Last edited by Jebtrix (2017-02-06 23:10:37)

Jebtrix

Member

Registered: 2016-08-10

Posts: 8

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I see a bug report that looks like our symptom, even mentions our realtek wifi card model. Just have to hold tight or downgrade kernel.

https://bugs.archlinux.org/task/52741
FS#52741 - [linux] 4.9.6-1 - WPA_Suppliant DEAUTH_LEAVING

paris3200

Member

Registered: 2012-12-08

Posts: 22

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I've got the same problem.  Downgrading the kernel fixed the issue for me.  Hopefully, it will be patched soon.

SchimpansenMann

Member

Registered: 2014-05-14

Posts: 14

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

Hey,

i have a similar problem with my wifi.

Ouput of lspci:

Network controller: Qualcomm Atheros AR9485 Wirless Network Adapter (rev 01).

With the latest kernel wifi is almost completely broken.
With linux-4.8.14-1 wifi connection is okay-ish at home but still very bad at university. Sometimes, I can't even scan for networks via wifi-menu and if it works I find only few networks. It is very difficult to connect to a network and if I am able to connect the signal is very poor and the connection does not last for long.
I use netctl(-auto) to manage my connections.

Here is some output from dmesg:

[16612.347679] wlp2s0: authenticated
[16612.347974] ath9k 0000:02:00.0 wlp2s0: disabling HT as WMM/QoS is not supported by the AP
[16612.347978] ath9k 0000:02:00.0 wlp2s0: disabling VHT as WMM/QoS is not supported by the AP
[16612.350440] wlp2s0: associate with {macaddress} (try 1/3)
[16612.358690] wlp2s0: RX AssocResp from {macaddress} (capab=0x31 status=0 aid=19)
[16612.358897] wlp2s0: associated
[16612.364035] ath: EEPROM regdomain: 0x8114
[16612.364038] ath: EEPROM indicates we should expect a country code
[16612.364039] ath: doing EEPROM country->regdmn map search
[16612.364040] ath: country maps to regdmn code: 0x37
[16612.364042] ath: Country alpha2 being used: DE
[16612.364042] ath: Regpair used: 0x37
[16612.364044] ath: regdomain 0x8114 dynamically updated by country IE
[16977.225789] wlp2s0: deauthenticated from {macaddress} (Reason: 6=CLASS2_FRAME_FROM_NONAUTH_STA)
[16990.773921] wlp2s0: authenticate with{macaddress}
[16990.795891] wlp2s0: send auth to {macaddress} (try 1/3)
[16990.806582] wlp2s0: authenticated
[16990.806892] ath9k 0000:02:00.0 wlp2s0: disabling HT as WMM/QoS is not supported by the AP
[16990.806896] ath9k 0000:02:00.0 wlp2s0: disabling VHT as WMM/QoS is not supported by the AP
[16990.809985] wlp2s0: associate with {macaddress} (try 1/3)
[16990.819011] wlp2s0: RX AssocResp from {macaddress} (capab=0x21 status=0 aid=19)
[16990.819186] wlp2s0: associated
[16990.825013] ath: EEPROM regdomain: 0x8114
[16990.825017] ath: EEPROM indicates we should expect a country code
[16990.825019] ath: doing EEPROM country->regdmn map search
[16990.825020] ath: country maps to regdmn code: 0x37
[16990.825022] ath: Country alpha2 being used: DE
[16990.825023] ath: Regpair used: 0x37
[16990.825026] ath: regdomain 0x8114 dynamically updated by country IE
[19243.038582] wlp2s0: deauthenticating from 0a:80:48:47:fb:88 by local choice (Reason: 3=DEAUTH_LEAVING)
[19243.058238] wlp2s0: authenticate with {macaddress}
[19243.073164] wlp2s0: send auth to{macaddress} (try 1/3)
[19243.075710] wlp2s0: authenticated
[19243.075895] ath9k 0000:02:00.0 wlp2s0: disabling HT as WMM/QoS is not supported by the AP
[19243.075897] ath9k 0000:02:00.0 wlp2s0: disabling VHT as WMM/QoS is not supported by the AP
[19243.077840] wlp2s0: associate with {macaddress} (try 1/3)
[19243.083115] wlp2s0: RX AssocResp from {macaddress} (capab=0x31 status=0 aid=19)
[19243.083242] wlp2s0: associated
[19243.087133] ath: EEPROM regdomain: 0x8114
[19243.087135] ath: EEPROM indicates we should expect a country code
[19243.087136] ath: doing EEPROM country->regdmn map search
[19243.087137] ath: country maps to regdmn code: 0x37
[19243.087138] ath: Country alpha2 being used: DE
[19243.087139] ath: Regpair used: 0x37
[19243.087140] ath: regdomain 0x8114 dynamically updated by country IE

and journalctl -u netctl-auto@wlp2s0:

Feb 07 15:32:56 {user} dhclient[7893]: DHCPNAK from {ip}
Feb 07 15:32:56 {user} dhclient[7893]: DHCPDISCOVER on wlp2s0 to {broadcast} port 67 inte
Feb 07 15:32:56 {user} dhclient[7893]: DHCPREQUEST on wlp2s0 to {broadcast} port 67
Feb 07 15:32:56 {user} dhclient[7893]: DHCPOFFER from {ip}
Feb 07 15:32:56 {user} dhclient[7893]: DHCPACK from {ip}
Feb 07 15:32:56 {user} dhclient[7893]: bound to {ip} -- renewal in 126 seconds.
Feb 07 15:33:04 {user} dhclient[4057]: DHCPREQUEST on wlp2s0 to {ip} port 67
Feb 07 15:33:11{user} dhclient[4057]: DHCPREQUEST on wlp2s0 to {ip} port 67
Feb 07 15:33:23 {user} dhclient[4057]: DHCPREQUEST on wlp2s0 to{ip} port 67
Feb 07 15:33:26 {user} dhclient[1303]: DHCPREQUEST on wlp2s0 to {ip} port 67
Feb 07 15:33:30{user} dhclient[1303]: DHCPREQUEST on wlp2s0 to {ip} port 67
Feb 07 15:33:41 {user} dhclient[1303]: DHCPREQUEST on wlp2s0 to {ip} port 67 

Not sure how helpful that output is, though. If I can provide additional information, please let me know.

best,
Schimp

xu564856686

Member

Registered: 2016-07-15

Posts: 42

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

Downgrading to linux 4.8.8-2 fixed this for me.

Jebtrix

Member

Registered: 2016-08-10

Posts: 8

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I downgraded to 4.8.13-1 to achieve acceptable wifi performance. Kernel 4.9.8 is dropping soon, its has a lot of networking changes, hopefully solves this.

Jebtrix

Member

Registered: 2016-08-10

Posts: 8

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

Kernel 4.9.8-1, still broke...

Jebtrix

Member

Registered: 2016-08-10

Posts: 8

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

Its a driver issue, solved with 4.9.8-1 and installing rtlwifi_new-dkms (currently 225.ad9a9f2-1) from AUR. Remember to install linux-headers first so dkms can install module.

SchimpansenMann

Member

Registered: 2014-05-14

Posts: 14

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

In my case, linux-4.8.8-2 was worst than linux-4.8.14-1. But linux-4.9.8-1 seems to work for the moment.

[EDIT] I take it back, the problem still persists with linux-4.9.8-1.

Last edited by SchimpansenMann (2017-02-10 09:41:56)

Cracky7

Member

Registered: 2017-02-18

Posts: 8

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

-

Last edited by Cracky7 (2018-10-08 11:04:10)

xu564856686

Member

Registered: 2016-07-15

Posts: 42

Re: [SOLVED] WiFi connection breaks after upgrading to linux 4.9.6-1

I installed linux-4.10.3-1, linux-headers and rtlwifi_new-dkms. My WiFi connection is working.