Tag: upgrade

I had recently upgraded my laptop from Ubuntu 20.04 from 22.04. Once restarted after the upgrade, my laptop just wouldn’t connect to any network (LAN/Wifi/USB tethering)

I ran this command to see the network devices:

sudo lshw -c network

Which gave a very similar result as this:

*-network UNCLAIMED       
   description: Ethernet controller
   product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:03:00.0
   version: 03
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix vpd bus_master cap_list
   configuration: latency=0
   resources: ioport:d800(size=256) memory:f8fff000-f8ffffff memory:f8ff8000-f8ffbfff memory:f9ee0000-f9efffff


 *-network UNCLAIMED
   description: Network controller
   product: RTL8812AE 802.11ac PCIe Wireless Network Adapter
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:02:00.0
   version: 01
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list
   configuration: latency=0
   resources: ioport:c800(size=256) memory:f9dfc000-f9dfffff

Solution

After some research these were the steps which I followed to get the network devices and the network connectivity back

In terminal, run

uname -r
6.5.0-25-generic

Note the output, for me it was “6.5.0-25-generic”

From another computer, download linux-modules-extra-6.5.0-25-generic.deb from here.

Please note that depending on the kernel version you are running (as indicated by the uname output,) your exact .deb file will be different.

Copy the downloaded .deb file into the network-broken laptop using a pen-drive.

Now in the network-broken laptop, cd to the location of the .deb file.

Run

sudo dpkg -i linux-modules-extra-6.5.0-25-generic_6.5.0-25.25~22.04.1_amd64.deb

Restart the laptop.

The network devices and network connectivity was restored.