Answer by T3CHI5 for I can't connect to internet through wired connection

First things first, does the wired ethernet connection you are trying to use work with another computer?

If not, try switching the cable or port that it is connected to - e.g moving from a switch to the ports on the back of your router.

If you are sure that the wired connection does work, then there are a few things you could try:

• Firstly, open a new terminal and enter the command below, making sure that your ethernet cable is attached and wifi turned off

  ifconfig
  

  The output of this should show you all of the connected/active network adapters. one nearest the top should be named either 'eth0' or 'enp2s0' so similar. This should display an 'inet addr:192.168.0.#'. If you do not see this please edit your question with a copy of the output from the 'ifconfig' command.

• Secondly, enter the command below, into a new terminal:

  sudo ifconfig eth0 up
  

  With 'eth0' being edited depending on the output of 'ifconfig'

  This should start the ethernet (wired connection) adapter and provide you with network connection.