Score:1

lshw -C network shows Ethernet "network unclaimed"

in flag
   *-network UNCLAIMED
   description: Ethernet controller
   product: Intel Corporation
   vendor: Intel Corporation
   physical id: 0
   bus info: pci@0000:01:00.0
   version: 03
   width: 32 bits
   clock: 33MHz

Using "Intel(R) Ethernet Controller (3) I225-LM".
Ubuntu : 18.04
Kernel : 5.4.0-128-generic

modprobe igc; dmesg

igc 0000:01:00.0: no suspend buffer for PTM
igc: probe of 0000:01:00.0 failed with error -2

guiverc avatar
cn flag
What OS are you using? You mention Ubuntu 18.04 then a non-Ubuntu kernel; is your system Ubuntu based and not Ubuntu as your details contradict.
sandip avatar
in flag
I am using Ubuntu 18.04 with 5.4.0-128-generic kernel. Somewhere I saw the solution that updating a kernel may resolve the issue but still Ethernet is not working after updating kernel so reverted back to original ubuntu kernel 5.4.0-128-generic.
chili555 avatar
cn flag
I suggest you try a live session of Ubuntu 22.04 and see if the later kernel; i.e. 5.15, resolves the issue.
ChanganAuto avatar
us flag
Keep min mind Ubuntu 18.04 has only 5 months of support left. There's really no point in troubleshooting it if the current release already supports it.
Eliezer Berlin avatar
ar flag
@sandip I'm having exactly the same issue. Did you ever solve it?
chili555 avatar
cn flag
@EliezerBerlin Please start your own new question.
Score:0
ar flag

It seems that Ubuntu 18.04 is incompatible with newer hardware. (Apparently network drivers are built directly into the kernel, and so Ubuntu 18.04 doesn't have the newest Intel drivers.)

Upgrading from Ubuntu 18.04 to Ubuntu 22.04 (Using a USB tethered smartphone to provide internet) solved the issue.

Eliezer Berlin avatar
ar flag
As a side note, as ChanganAuto said, `Ubuntu 18` reached end-of-life on May 2023, so nobody should be using it anyways.
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.