Ethernet Network not showing or connecting in Ubuntu 17.04
Solution 1
According to this bug report, the solution is to add a missing configuration file to NetworkManager, then to restart it.
It worked for me :
sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
sudo systemctl restart NetworkManager
Solution 2
Open an Terminal window. There are many different methods for this. The easist is to Alt + Ctrl + T at the same time.
Step 1 Type in or copy this command: sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
Then press the Enter key. Now type in your user password and press the Enter key again.
Step 2 Do the same for this command: sudo systemctl restart NetworkManager
Solution 3
I entered this into terminal:
sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
entered and then rebooted and it is there.
Solution 4
For temporary solution use
sudo dhclient
Solution 5
Ethernet Network not showing or connecting in Ubuntu 18.04
It is working fine. Just open the terminal and update the system using WiFi-connection:
sudo apt-get update
After compliantion of the update
clear
Now open the New terminal:
sudo nano /etc/NetworkManager/NetworkManager.conf
change the line managed=false to managed=true
Save, stop and start network manager:
if you find any problem else more try this:
sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
sudo systemctl restart NetworkManager
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casawyer
I'm disabled Industrial Electrician turned Minister. I do volunteering at the local Salvation Army in Ottumwa Iowa twice a week. I'm married with five children and 14 grandchildren. I'm political on facebook and anti two party system, registered Green Party after a life long membership in the Democratic Party. Changed after Bernie endorsed Hillary.
Updated on September 18, 2022Comments
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casawyer over 1 year
I updated from 16.04 to 17.04 a couple days ago. After doing so I found that when I connect my Ethernet cable, it doesn't connect or show connection as it did in 16.04. I Have an HP-15 laptop. I checked for drivers in update area, but it didn't find anything related to Ethernet network.
Here is what I did: To do this - in a terminal:
sudo nano /etc/NetworkManager/NetworkManager.conf
change the line managed=false to managed=true
Save, stop and start network manager:
sudo service network-manager restart
But still have the problem.
It looks like it tries to connect to LAN wired connection but then goes directly to WiFi and connects, then doesn't show any Ethernet connection like it did in 16.04. Any help would be appreciated. I'm almost ready to revert to 16.04
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casawyer about 7 years[main] plugins=ifupdown,keyfile [ifupdown] managed=true
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casawyer about 7 yearsWent there followed the directions, rebooted and still no ethernet connection showing.
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casawyer about 7 years# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. nameserver 127.0.0.53
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casawyer about 7 yearssystemd-resolve --status the out put is to big to post in this. I followed that links instructions earlier didn't work.
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Sumeet Deshmukh about 7 yearsyou can post the output at Paste Ubuntu and link it in the question, also update the information that we discussed in the comments to your question and delete comments
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Pedro_Uno over 6 yearsThis fixed my problem. My Ethernet adapter was completely missing from ifconfig output but is available now.
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alle_meije over 4 yearsThat worked for me as well. 2 1/2 years later though. Is this still a bug???
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poozmak over 3 yearsAfter so much struggle. THANK YOU!
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Fusseldieb over 3 yearsThis command actually made my ethernet connection come back alive after I've broken it using autoremove...
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A.G. about 3 yearsThis fixed my problem also...in Ubuntu 20.04 LTS. So I give you an upvote.
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coppereyecat almost 3 yearsThanks for this. I was missing the config after having installed Ubuntu 20.04 while using a wireless adapter, and later removed the wireless and had no ethernet. I could get a connection temporarily with
sudo dhclient enp2s0
andservice network-manager restart
but it would disappear again after restart. Adding the globally managed devices conf file resolved it for me. -
Admin almost 2 yearsI have the same problem on Ubuntu 20.04. Unfortunately this did not work for me.
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Admin almost 2 yearsTried this. Did not solve anything. Why is it supposed to work. What is the meaning of managed=true. Why is it not the default if it is better?