Wifi / Wlan disappeared

Hey there,
I am using Zorin OS on my Dell Laltitude 5285.
It sounds strange but my wifi disappeared since the last restart of my laptop.
I had the same issue a few months ago:
The button "Wifi" is not in the taskbar anymore and in the settings under "Network" only VPN is still visible.
Problem solved itself after a few days but still: Any idea what I can do now?
Thanks!

Can you please post the terminal output of

sudo lshw -C network

Let's see which driver you are using.
If the driver in use relies on DKMS, and if a recent update also upgraded the kernel, then DKMS may have not been able to find the module.
You can help with this too, by relaying if you have ever needed to install Wifi drivers on this build of Zorin OS before.

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Indicator Plugin got disabled :thinking:
Try to access it via the taskbar settings.

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  *-network                 
       description: Network controller
       product: Wireless 8265 / 8275
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 78
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=iwlwifi latency=0
       resources: irq:147 memory:d1500000-d1501fff

Might be because of the kernel upgrade. A week ago, I didn't had one problem.

Combined with the Zorin Version... it really should be working.
We can try rolling back your kernel and see if the Wifi works. If it does, you could just stick with the earlier kernel.
You can boot into an earlier kernel by tapping esc starting at the motherboar5d splash screen to see the grub menu. Select Advanced Options for Zorin and arrow key down to the earlier kernel to boot.

Rolling back doesn't solve the problem. Very strange...
As mentioned before. It seemed to work just after a couple of days afterwards by itself. Only that working now would be quite nice... :smiley:

Edit: Zorin live recognises Wifi.

Which VPN are you using?

Have you ensured that the Modules-extra package is installed?

sudo apt install -y linux-modules-extra-5.15.0-48-generic

Have you been staying on top of Zorin OS Updates?

Have you checked your /etc/modprobe.d/blacklist.conf

Have you at any point used modprobe to disable or enable modules?

Okey, unexpected change:

Works perfectly since today. Did nothing from above.

sudo lshw -C network
  *-network                 
       description: Wireless interface
       product: Wireless 8265 / 8275
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: wlp1s0
       version: 78
       serial: 60:f6:77:fe:26:ee
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=5.15.0-48-generic firmware=36.77d01142.0 8265-36.ucode ip=192.168.2.214 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:147 memory:d1500000-d1501fff

Edit, tried the folloing command:

sudo apt install -y linux-modules-extra-5.15.0-48-generic

Was already installed.

I blacklisted an Intel vbtn driver to make the keyboard work on startup.

This really looks like a hardware issue at this point.
The drivers in the kernel, DKMS are correct. The device works without making any changes...
Wifi Hardware often shows these symptoms when they begin to fail.
They just intermittently stop working, then seem to work for a while, then stop...

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