Wifi available but not working

Support Network
1

Hi! I’m new to linux and just installed Manjaro 20.2 and I can’t figure why the wifi isn’t working, but the ethernet works fine

System:
  Host: victor-PC Kernel: 5.9.11-3-MANJARO x86_64 bits: 64 
  Desktop: KDE Plasma 5.20.4 Distro: Manjaro Linux 
Machine:
  Type: Laptop System: LENOVO product: 2350A26 v: ThinkPad T430 
  serial: <superuser/root required> 
  Mobo: LENOVO model: 2350A26 serial: <superuser/root required> 
  UEFI [Legacy]: LENOVO v: G1ETC2WW (2.82 ) date: 08/07/2019 
Battery:
  ID-1: BAT0 charge: 5.4 Wh condition: 5.5/94.0 Wh (6%) 
CPU:
  Info: Dual Core model: Intel Core i5-3320M bits: 64 type: MT MCP 
  L2 cache: 3072 KiB 
  Speed: 1264 MHz min/max: 1200/3300 MHz Core speeds (MHz): 1: 1197 
  2: 1338 3: 1197 4: 1197 
Graphics:
  Device-1: Intel 3rd Gen Core processor Graphics driver: i915 v: kernel 
  Device-2: Chicony thinkpad t430s camera type: USB driver: uvcvideo 
  Display: x11 server: X. Org 1.20.10 driver: intel unloaded: modesetting 
  resolution: 1600x900~60Hz 
  OpenGL: renderer: Mesa DRI Intel HD Graphics 4000 (IVB GT2) 
  v: 4.2 Mesa 20.2.3 
Audio:
  Device-1: Intel 7 Series/C216 Family High Definition Audio 
  driver: snd_hda_intel 
  Sound Server: ALSA v: k5.9.11-3-MANJARO 
Network:
  Device-1: Intel 82579LM Gigabit Network driver: e1000e 
  IF: enp0s25 state: up speed: 100 Mbps duplex: full 
  mac: 00:21:cc:ce:ec:59 
  Device-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi 
  IF: wlp3s0 state: down mac: f2:c3:ab:6c:01:d7 
Drives:
  Local Storage: total: 494.88 GiB used: 38.90 GiB (7.9%) 
  ID-1: /dev/sda vendor: Samsung model: SSD 860 EVO 500GB 
  size: 465.76 GiB 
  ID-2: /dev/sdb type: USB vendor: Transcend 
  model: JetFlash Transcend 32GB size: 29.12 GiB 
Partition:
  ID-1: / size: 457.45 GiB used: 15.92 GiB (3.5%) fs: ext4 
  dev: /dev/sda1 
Swap:
  ID-1: swap-1 type: file size: 512.0 MiB used: 1.2 MiB (0.2%) 
  file: /swapfile 
Sensors:
  System Temperatures: cpu: 51.0 C mobo: 0.0 C 
  Fan Speeds (RPM): cpu: 3773 
Info:
  Processes: 207 Uptime: 1h 32m Memory: 11.41 GiB used: 1.97 GiB (17.2%) 
  Shell: Bash inxi: 3.1.08
2

probably an exotic wireless adapter

3

what does that mean?

4

Hi @testingcont,
Can you execute the terminal command inxi -FN and put the output in the post?

In order to help you we must know something about the wifi adapter.

Hope it help, regards.

6

Edited the post

7

Hi, @testingcont,
Your wifi is down, although is present.
You can check whether is blocked or not with the following terminal command:
sudo rfkill list all.

I also suggest you to look at this couple of post, in order to try to solve your problem.
‘Wireless Connection randomly disconnects, restart is required - #12 by TriMoon’

‘Wifi shows its connected for 5Ghz radio but will not resolve an address, but connecting with 2.4Ghz Radio always works - #2 by megavolt’

Hope it help, regards

8

Hey! Doesn’t seem to be blocked, but the wifi works on both windows and Linux Mint

9

Try:

sudo systemctl restart NetworkManager
nmcli networking on
10

Same thing, only now it shows “limited connectivity”

11

Could you also post the vendor and ID (chip ID)? Without it, it would really hard to find any possible solution if that one is really exotic…

inxi -Nazy
12

A Thinkpad has a wifi toggle FnF8.

Also check in the firmware if wifi-card is enabled.

There is specific power modules for Thinkpad is in the repo - so you should check your power settings both within KDE but also tlp. Install tlpui to get a GUI overview over the settings.

13

Network:
Device-1: Intel 82579LM Gigabit Network vendor: Lenovo driver: e1000e
v: kernel port: 6080 bus ID: 00:19.0 chip ID: 8086:1502
Device-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi
v: kernel port: efa0 bus ID: 03:00.0 chip ID: 8086:0085

14

ok @testingcont , at least the wifi is not exotic and should work:

I guess there is more investigation needed then…

Could you run:

journalctl -f

and then try to connect? Any useful information in the log?

15

Quite a lot.
– Logs begin at Sun 2020-12-13 20:01:43 EET. –
Dec 14 15:07:01 victor-PC dolphin[5497]: kf.kio.core: “Can’t load /etc/samba/smb.conf - run testparm to debug it\n”
Dec 14 15:07:03 victor-PC kwin_x11[1136]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 22864, resource id: 90177547, major code: 18 (ChangeProperty), minor code: 0
Dec 14 15:07:03 victor-PC kwin_x11[1136]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 22879, resource id: 75497489, major code: 18 (ChangeProperty), minor code: 0
Dec 14 15:07:03 victor-PC systemd[1050]: app-org.kde.dolphin-fb7d1723ba524e4fba59e42cbc7ee9e2.scope: Succeeded.
Dec 14 15:07:03 victor-PC kwin_x11[1136]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 22894, resource id: 35651876, major code: 18 (ChangeProperty), minor code: 0
Dec 14 15:07:05 victor-PC plasmashell[1182]: trying to show an empty dialog
Dec 14 15:07:07 victor-PC systemd[1050]: Started Konsole - Terminal.
Dec 14 15:07:07 victor-PC kwin_x11[1136]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 24488, resource id: 12582925, major code: 18 (ChangeProperty), minor code: 0
Dec 14 15:07:08 victor-PC kwin_x11[1136]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 24896, resource id: 16796128, major code: 3 (GetWindowAttributes), minor code: 0
Dec 14 15:07:08 victor-PC kwin_x11[1136]: qt.qpa.xcb: QXcbConnection: XCB error: 9 (BadDrawable), sequence: 24897, resource id: 16796128, major code: 14 (GetGeometry), minor code: 0
Dec 14 15:07:15 victor-PC kwin_x11[1136]: file:///usr/lib/qt/qml/org/kde/plasma/components/Highlight.qml:34:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. U
se this syntax instead: function onFoo() { … }

I also tried to follow this guide:this

and when I tried

/etc/modprobe.d/iwlwifi.conf

the file doesn’t exist.

16

You need to create that text file. :wink:

17

Also check in the firmware if wifi-card is enabled

Can you help in more details how do I do that?

18

Just a blank text file? What would that accomplish?

19

Of course with content xD

Your can try some other options like:

options iwlwifi 11n_disable=1 swcrypto=1

https://wiki.archlinux.org/index.php/Network_configuration/Wireless#iwlwifi

More information with:

modinfo iwlwifi
1 Like
21

ok… open nano and create a new file:

sudo nano /etc/modprobe.d/iwlwifi.conf

then copy and paste this:

into that file and with CTRL+S you save the file. Close with CTRL+X.

Reboot…

4 Likes
22

It works :smiley:. Thank you so much. Was the missing file the problem? I tried a bunch of other things