Last 3 months i continuously using the elementary OS (elementary OS 5.1.5 Hera - with dual boot) for personal use. This is my first linux OS of my PC, and I am not using a linux version like before. I am facing alot of OS stability issues in this time. One the main issue on detecting the network adapeters. I have two network interfaces, one wired LAN and another is wireless adapter. I have a strange issue when i try to enable the wired lan i got a message like below message.

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I already googled many hours and find out some instructions for editing the network configuration and restart the network manager service many times. but no use. I am really disappointed about the stability of elementary os. Any advice much appreciated.


1 Answer 1


Open terminal and type sudo nmtui. You should be able to manage networks there.

  • Thank you very much for your valuable replay, but how can i recreate the lan network card. Jun 14, 2020 at 15:41
  • 1
    If you will type sudo nmtui there will be an option to add a network. You can choose between wireless or LAN network there. You can set the dynamic or static IP address etc. If you need more help, let me know. I can try to help. Question is does your PC detects the network card, I mean hardware. What sudo lscpi command shows? Can you paste results to pastebin and provide a link?
    – Sysadmin
    Jun 14, 2020 at 17:12
  • Thank you very much for your great support. Jun 16, 2020 at 17:51

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