Internal WIFI not found after restart

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two06
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Internal WIFI not found after restart

Post by two06 » Mon Nov 05, 2018 6:09 am

Hi all,

The internal WIFI card on my XPS 15 (2018) has stopped working. It was fine when I shutdown last week, and not working when I powered on this morning. I'm posting this using an alfa card, which works fine.

I'm running Mint 19 Cinnamon, kernel 4.15.0-36.

I've posted some info below, which all show the alfa card only. Any help would be appreciated.

Cheers!

Output of inxi -Fxz:

Code: Select all

System:    Host: XPS-15 Kernel: 4.15.0-38-generic x86_64 bits: 64 gcc: 7.3.0
           Desktop: Cinnamon 3.8.9 (Gtk 3.22.30-1ubuntu1) Distro: Linux Mint 19 Tara
Machine:   Device: laptop System: Dell product: XPS 15 9570 serial: N/A
           Mobo: Dell model: 0D0T05 v: A00 serial: N/A UEFI: Dell v: 1.3.0 date: 07/12/2018
Battery    BAT0: charge: 87.4 Wh 100.0% condition: 87.4/97.0 Wh (90%)
           model: SMP DELL GPM0365 status: Full
CPU:       6 core Intel Core i7-8750H (-MT-MCP-) arch: Skylake rev.10 cache: 9216 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 26496
           clock speeds: max: 4100 MHz 1: 1249 MHz 2: 1933 MHz 3: 1871 MHz 4: 1987 MHz 5: 1650 MHz
           6: 1605 MHz 7: 1726 MHz 8: 1910 MHz 9: 1792 MHz 10: 1931 MHz 11: 1945 MHz 12: 1915 MHz
Graphics:  Card-1: Intel Device 3e9b bus-ID: 00:02.0
           Card-2: NVIDIA GP107M [GeForce GTX 1050 Ti Mobile] bus-ID: 01:00.0
           Display Server: x11 (X.Org 1.19.6 )
           drivers: modesetting,nvidia (unloaded: fbdev,vesa,nouveau)
           Resolution: 1920x1080@60.00hz, 1920x1080@60.00hz
           OpenGL: renderer: GeForce GTX 1050 Ti with Max-Q Design/PCIe/SSE2
           version: 4.6.0 NVIDIA 390.77 Direct Render: Yes
Audio:     Card Intel Device a348 driver: snd_hda_intel bus-ID: 00:1f.3
           Sound: Advanced Linux Sound Architecture v: k4.15.0-38-generic
Network:   Card: Atheros AR9271 802.11n driver: ath9k_htc usb-ID: 001-020
           IF: wlx00c0ca9751be state: up mac: <filter>
Drives:    HDD Total Size: 512.1GB (33.9% used)
           ID-1: /dev/nvme0n1 model: PM981_NVMe_Samsung_512GB size: 512.1GB
Partition: ID-1: / size: 468G used: 162G (37%) fs: ext4 dev: /dev/nvme0n1p2
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 40.0C mobo: N/A gpu: 0.0:42C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 287 Uptime: 1:05 Memory: 2831.1/15685.6MB
           Init: systemd runlevel: 5 Gcc sys: 7.3.0 Client: Shell (zsh 5.4.2) inxi: 2.3.56 
output of rfkill list all:

Code: Select all

5: phy5: Wireless LAN
	Soft blocked: no
	Hard blocked: no
output of lshc -C network:

Code: Select all

WARNING: you should run this program as super-user.
  *-network:0               
       description: Wireless interface
       physical id: 1
       bus info: usb@1:1.1
       logical name: wlx00c0ca9751be
       serial: 00:c0:ca:97:51:be
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=ath9k_htc driverversion=4.15.0-38-generic firmware=1.4 ip=192.168.1.113 link=yes multicast=yes wireless=IEEE 802.11
  *-network:1
       description: Ethernet interface
       physical id: 2
       logical name: docker0
       serial: 02:42:01:fc:e3:87
       capabilities: ethernet physical
       configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=172.17.0.1 link=no multicast=yes
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

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lsemmens
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Re: Internal WIFI not found after restart

Post by lsemmens » Mon Nov 05, 2018 8:10 am

I found on one of my machines that the wifi network card had been disabled in driver manager. Could be worth a look,
Kernel: 4.15.0-36-generic x86_64 bits: 64
Desktop: Cinnamon 3.8.9
Distro: Linux Mint 19 Tara

Laptop T4500 Dualcore 4Gb RAM
Server AMD Phenom 9650 - GEForce 9400GT 6Gb RAM
+ three other Linux Mint machines
Out of my mind - please leave a message

two06
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Re: Internal WIFI not found after restart

Post by two06 » Mon Nov 05, 2018 9:38 am

Thanks for the reply.

when I open Driver Manager, I get a screen showing two options for my nvidia card, and nothing else. Is there a way to view other drivers?

cheers,

JeremyB
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Re: Internal WIFI not found after restart

Post by JeremyB » Mon Nov 05, 2018 11:29 am

Check BIOS settings to see if wlan is enabled. You could also remove the wifi card and reinstall it to see if it was a connection issue

two06
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Re: Internal WIFI not found after restart

Post by two06 » Tue Nov 06, 2018 4:57 am

Thanks for the suggestions all.

After shutting down last night, and restarting this morning, I now have the WIFI adapter back. I have no idea why, nothing has changed since yesterday, and I tried a few reboots yesterday morning.

petedecember
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Re: Internal WIFI not found after restart

Post by petedecember » Tue Nov 06, 2018 10:37 pm

Please keep this thread alive and help find the answer to what is happening! I am going through the same issue--my Wifi just disappeared, and it refuses to turn back on when I click on the applet in the bottom right of the screen. Help, please!

two06
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Re: Internal WIFI not found after restart

Post by two06 » Wed Nov 07, 2018 5:13 am

Powered on this morning, no internal WiFi. Everything worked fine yesterday.

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AZgl1500
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Re: Internal WIFI not found after restart

Post by AZgl1500 » Wed Nov 07, 2018 6:01 am

I have taken to just turning off the monitor, and do not power off my PC or my laptop anymore.

it just is not worth the hassle of things not working again.

on my Win7 desktop, the bootup process is so painstakingly slow, I could plow the garden, plant the seeds, and water them.... and the blooms are coming out of the ground before the damn thing settles down and wants to work for me.

and that is on a fast mobo, approx 2 gHz clock and 6 gB RAM, and a video card that has its' own RAM. nothing shared. it is pathetic.... never mind Win10, won't use it.

With my 18.3 Cinnamon laptop, sometimes it will shutdown smooth, other times it won't.
there just does not seem to be any rhyme or reason to how it works...

LMDE3 Cindy on the other hand, boots fast, and shuts down in 5 seconds. nice and clean.
same laptop, just a dedicated partition.

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trytip
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Re: Internal WIFI not found after restart

Post by trytip » Wed Nov 07, 2018 11:02 am

looks like you updated to kernel 4.15.0-38-generic x86_64 bits but you say you have 4.15.0-36
try booting with 4.15.0-36 and see how things are
Image

petedecember
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Re: Internal WIFI not found after restart

Post by petedecember » Wed Nov 07, 2018 10:11 pm

Found the solution to my problem:
There is a function key that I accidentally pressed that turned off the wifi, and the software could not override it to turn it back on. Believe it or not, Windows help trouble shooted this and suggested to look for a switch on the front or the side of the laptop to turn wifi off. So, look for a switch or function key that you might have flipped!

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AZgl1500
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Re: Internal WIFI not found after restart

Post by AZgl1500 » Thu Nov 08, 2018 4:35 am

petedecember wrote:
Wed Nov 07, 2018 10:11 pm
Found the solution to my problem:
There is a function key that I accidentally pressed that turned off the wifi, and the software could not override it to turn it back on. Believe it or not, Windows help trouble shooted this and suggested to look for a switch on the front or the side of the laptop to turn wifi off. So, look for a switch or function key that you might have flipped!
My Dell laptops both have that infernal hardware switch,
and I can't begin to count the times that trying to press '2' goes awry and my fingers hits the hardware WiFi switch....

I finally pasted a label on the button with WiFi in large bold letters.
then stuck a label writer strip on the bottom of the screen:
No WiFi ? turn on the WiFi switch dummy

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