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raul_l

Member

From: Amsterdam

Registered: 2014-11-04

Posts: 58

Wifi card sometimes not working

It sometimes happens that no Wifi networks are found. I'm using KDE and this is what I see: dropbox.com/s/3gxoq0rf06vfhoo/screenshot.png?dl=0
This issue is usually fixed with a reboot. I never have any issues with the ethernet cable.

The Wifi card itself seems to be detected. This is the output of lspci -kvvv:

03:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
	Subsystem: Intel Corporation Dual Band Wireless-AC 8260
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 135
	Region 0: Memory at df200000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

However, when I run ip addr the Wifi card is not present:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp2s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 80:fa:5b:27:93:50 brd ff:ff:ff:ff:ff:ff
    inet 10.236.67.52/23 brd 10.236.67.255 scope global dynamic noprefixroute enp2s0f1
       valid_lft 497586sec preferred_lft 497586sec
    inet6 fe80::7d6d:3b40:e60c:d959/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

"dmesg | grep iwlwifi" reveals that something has gone wrong:

[    7.751687] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002)
[    7.802094] iwlwifi 0000:03:00.0: loaded firmware version 34.0.1 op_mode iwlmvm
[    7.982994] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
[    9.055103] iwlwifi 0000:03:00.0: SecBoot CPU1 Status: 0x3090001, CPU2 Status: 0x0
[    9.055802] iwlwifi 0000:03:00.0: Failed to start INIT ucode: -110
[    9.068883] iwlwifi 0000:03:00.0: Failed to run INIT ucode: -110

I'm not sure what to do with this information. Maybe some kernel module failed to load? Any suggestions are welcome.

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Raul Laasner

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,808

Re: Wifi card sometimes not working

What is the output of find /etc/systemd
?

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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raul_l

Member

From: Amsterdam

Registered: 2014-11-04

Posts: 58

Re: Wifi card sometimes not working

What is the output of find /etc/systemd
?

[raul@sys76 ~]$ find /etc/systemd
/etc/systemd
/etc/systemd/network
/etc/systemd/system
/etc/systemd/system/getty.target.wants
/etc/systemd/system/getty.target.wants/getty@tty1.service
/etc/systemd/system/multi-user.target.wants
/etc/systemd/system/multi-user.target.wants/remote-fs.target
/etc/systemd/system/multi-user.target.wants/NetworkManager.service
/etc/systemd/system/multi-user.target.wants/watchdog.service
/etc/systemd/system/multi-user.target.wants/mariadb.service
/etc/systemd/system/multi-user.target.wants/lm_sensors.service
/etc/systemd/system/dbus-org.freedesktop.NetworkManager.service
/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service
/etc/systemd/system/sysinit.target.wants
/etc/systemd/system/sysinit.target.wants/systemd-timesyncd.service
/etc/systemd/system/sockets.target.wants
/etc/systemd/system/sockets.target.wants/pcscd.socket
/etc/systemd/system/display-manager.service
/etc/systemd/user
/etc/systemd/user/sockets.target.wants
/etc/systemd/user/sockets.target.wants/pulseaudio.socket
/etc/systemd/user/sockets.target.wants/dirmngr.socket
/etc/systemd/user/sockets.target.wants/gpg-agent.socket
/etc/systemd/user/sockets.target.wants/gpg-agent-browser.socket
/etc/systemd/user/sockets.target.wants/gpg-agent-extra.socket
/etc/systemd/user/sockets.target.wants/gpg-agent-ssh.socket
/etc/systemd/user/sockets.target.wants/pipewire.socket
/etc/systemd/user/default.target.wants
/etc/systemd/user/default.target.wants/xdg-user-dirs-update.service
/etc/systemd/timesyncd.conf
/etc/systemd/resolved.conf
/etc/systemd/coredump.conf
/etc/systemd/journal-remote.conf
/etc/systemd/journal-upload.conf
/etc/systemd/user.conf
/etc/systemd/system.conf
/etc/systemd/logind.conf
/etc/systemd/journald.conf

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Raul Laasner

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,808

Re: Wifi card sometimes not working

I don't use Network manager myself, and systemd configuration is not my Forte, but do you have two copies of it NetworkManager.service enabled ?  It seems to appear under system/multi-user.target.wants and as system/dbus-org.freedesktop.NetworkManager.service

I seem to recall something about installation of Gnome installing it's own service and causing issues. https://bbs.archlinux.org/viewtopic.php?id=166128
I don't use Gnome either.

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

raul_l

Member

From: Amsterdam

Registered: 2014-11-04

Posts: 58

Re: Wifi card sometimes not working

I have indeed both KDE and Gnome installed. I tried Gnome some time ago but haven't used it since. I'll try uninstalling it. However, is there an easier way to disable one of those services?

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Raul Laasner

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,808

Re: Wifi card sometimes not working

Delete the soft link, or use systemctl disable ...

Edit note:  The soft link is created when the service is enabled; not when you install the package.  At least, it shouldn't be created when you install the package.

Last edited by ewaller (2018-04-09 20:48:15)

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

raul_l

Member

From: Amsterdam

Registered: 2014-11-04

Posts: 58

Re: Wifi card sometimes not working

Okay, I'll delete /etc/systemd/system/multi-user.target.wants/NetworkManager.service and see what happens. If I don't get Wifi issues for a while then I guess it fixed it.

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Raul Laasner