Ethernet Not Working Suddenly on Laptop (LM20)

[pristineorigins]

Hi there,

My wife's ASUS VivoBook (w/ AMD Ryzen 3) which is running Linux Mint 20 all of a sudden has stopped connecting to the internet when the ethernet cable is plugged in.

It's weird because my computer which is running Linux Mint 20 as well is working perfectly via the same ethernet connection. The signal is definitely there, but the laptop just says "connecting" when the ethernet is plugged in. WiFi works okay but it's not preferred.

I'm not sure what is causing it. The place we're staying at now has a different internet setup, if that makes any difference.

I tried:
1. Updating the ethernet driver following the instructions here: viewtopic.php?t=335649 (didn't work)
2. Updating the Kernel to 5.15 from 5.4 (didn't work)
3. Running a general update on everything on the laptop (didn't work)

Happy to try anything you all suggest.

Greatly appreciate your help.

Best,
Gabriel

Update:
Her laptop dual boots with Windows (she never uses it.) I just tried booting into Windows and it doesn't recognize the ethernet connection there either.

[pristineorigins]

Okay, here's what I'm trying now.

I've run the inxi -Nn command and this was the output:

Device-1: Intel Wireless 8265 / 8275 driver: iwlwifi
IF: wlp1s0 state: down mac: 74:d8:3e:53:f4:67
Device-2: Realtek RTL8153 Gigabit Ethernet Adapter type: USB driver: r8152
IF: enx00e04c080536 state: down mac: 00:e0:4c:08:05:36

So I figured maybe it was a driver thing. I went to the Realtek website here and downloaded this driver file: https://www.realtek.com/en/component/zo ... 0-software

Now my question is, I have no idea how to install it, lol.

[sleeper12]

You already have the driver:

Device-2: Realtek RTL8153 Gigabit Ethernet Adapter type: USB driver: r8152
IF: enx00e04c080536 state: down mac: 00:e0:4c:08:05:36

Try:

Code: Select all

 sudo modprobe -r r8152 && sudo modprobe r8152 && sudo systemctl restart network-manager.service 

[pristineorigins]

You already have the driver:

Device-2: Realtek RTL8153 Gigabit Ethernet Adapter type: USB driver: r8152
IF: enx00e04c080536 state: down mac: 00:e0:4c:08:05:36

Try:

Code: Select all

 sudo modprobe -r r8152 && sudo modprobe r8152 && sudo systemctl restart network-manager.service 

Hi friend,

Just ran the command. Here's the output:
modprobe: FATAL: Module r8152 is in use.

Tried rebooting and plugging in the ethernet again as well, no dice.

Thanks!

[sleeper12]

Have you tried reinserting the ethernet cable, maybe into a different port if there is one?

[sleeper12]

Sorry, I see you tried that. Any different with:

Code: Select all

sudo systemctl restart network-manager.service

If that does nothing, post what this shows:

Code: Select all

lspci -nnk | grep -iA3 net && inxi -Nn

[pristineorigins]

Hi sleeper,

The first command didn't work. Here is the output of the other commands:

Code: Select all

lspci -nnk | grep -iA3 net && inxi -Nn
01:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
  Subsystem: Intel Corporation Wireless 8265 / 8275 [8086:0110]
  Kernel driver in use: iwlwifi
  Kernel modules: iwlwifi

Network:
  Device-1: Intel Wireless 8265 / 8275 driver: iwlwifi 
  IF: wlp1s0 state: down mac: 74:d8:3e:53:f4:67 
  Device-2: Realtek RTL8153 Gigabit Ethernet Adapter type: USB driver: r8152 
  IF: enx00e04c080536 state: up speed: 100 Mbps duplex: full 
  mac: 00:e0:4c:08:05:36

[sleeper12]

Strange, lspci -nnk | grep -iA3 net doesn't even show ethernet. And your first inxi -Nn showed it as down, but now shows it up. So, maybe someone else can make sense of this.

[SMG]

Update:
Her laptop dual boots with Windows (she never uses it.) I just tried booting into Windows and it doesn't recognize the ethernet connection there either.

Unfortunately, that could point to this being a hardware issue with the laptop.

[sleeper12]

Update:
Her laptop dual boots with Windows (she never uses it.) I just tried booting into Windows and it doesn't recognize the ethernet connection there either.

Unfortunately, that could point to this being a hardware issue with the laptop.

That might be the case, though I still don't get the down & up thing.

[SMG]

That might be the case, though I still don't get the down & up thing.

I'm so used to seeing the Ethernet device listed first that I did not catch that.

@ristineorigins - the data seems to indicate you are using an Ethernet usb adapter device. Is that correct?

[sleeper12]

Well, I didn't catch that it might be an ethernet usb adapter. That might explain why it doesn't show in lspci -nnk | grep -iA3 net

Maybe try plugging it into a different usb port?

[pristineorigins]

That might be the case, though I still don't get the down & up thing.

I'm so used to seeing the Ethernet device listed first that I did not catch that.

@ristineorigins - the data seems to indicate you are using an Ethernet usb adapter device. Is that correct?

Yes, that's correct!

[sleeper12]

Did you try plugging into a different usb port just to rule out a possible faulty one?

[pristineorigins]

Did you try plugging into a different usb port just to rule out a possible faulty one?

It's a USB-C port and there's only one on this laptop

[SMG]

It's weird because my computer which is running Linux Mint 20 as well is working perfectly via the same ethernet connection.

Does this mean your computer can use the same usb adapter and it works?

[pristineorigins]

It's weird because my computer which is running Linux Mint 20 as well is working perfectly via the same ethernet connection.

Does this mean your computer can use the same usb adapter and it works?

I don't have a USB-C port on my personal computer, but I do actually use an adapter as well. It's a mini USB connection, and that one works great.

I took a screenshot on her computer earlier by the way, but I don't have it on me now.

I had my iPhone connected to her laptop via USB, and it showed that she had an internet connection through my phone's data. But then it also showed the Realtek RTL8153 was trying to connect, but it never did.

Maybe there's an issue with the adapter?

Thanks for your help friends

[SMG]

Maybe there's an issue with the adapter?

That would be my guess based on what you have described presuming you can use the port for data transfers or other peripherals. If those do not work, then the issue might be with the port itself.