Help me please. 3-rd day trying.

After installing ubuntu server there is no internet connection. ipconfig not installed and no possibility to install it because of internet connection

So. there is 3 interfaces (picture) enter image description here I`m trying to config netplan

      dhcp4: true
      dhcp6: true
      dhcp4: true
  version: 2

But there is no still internet. I tried many options from the Internet, but apparently I don't understand something, please tell me smart people.

sudo lshw -C network enter image description here

ls -al /etc/netplan

enter image description here

  • @guiverc Ubuntu 20.04.3 LTS (Focal Fossa)
    – Denis640Kb
    Sep 16, 2021 at 22:40
  • Edit your question and show me sudo lshw -C network and ls -al /etc/netplan. Describe your ethernet cabling from the computer to the router/modem. What is connected to each ethernet port? Are the ethernet ports discrete cards?
    – heynnema
    Sep 16, 2021 at 23:17
  • @heynnema can i possibly edit my question? I`m trying to reinstall ubuntu, and while installing i see this. paste.pics/DW9QB Can u possibly help me pleeeease?
    – Denis640Kb
    Sep 16, 2021 at 23:22
  • Answer my questions and I'll try to help. Click the edit link under your question, to edit your question.
    – heynnema
    Sep 16, 2021 at 23:26
  • Is the invalid MAC address for enp3s0 something of your doing?
    – heynnema
    Sep 16, 2021 at 23:40


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