Network Connection Drops on Ubuntu

I recently cloned my Ubuntu hard drive to a larger drive in order to store more of my stuff. I also used a different computer with the larger drive and this is when I noticed the drops with my network connection. The WIFI connection worked well but the wired connection was not working at all.

I thought it was my router at first because I’m a Digicel customer and their customer service is SO crappy that I have to troubleshoot problems myself before I even call them. So I ruled out the router as the problem, so I figured it must be my network adapter.

I did the ifdown -a and ifup -a but still had no connectivity. I even restarted the networking service to no avail: sudo systemctl restart networking.service.

At that point I was ready to pull out what little hair I have left, then out of curiosity (I’m using Ubuntu Desktop) I decided to use the GUI to reconfigure the network adapter and to my surprise and joy, it worked! Yay!!

I deleted the existing connection, that manually added a new connection and voila, Internet access was restored!!

Here are the steps:

  • Click the Network icon next to the clock
    Click Network Icon
  • Then click “Edit Connections”
    Then click "Edit Connections"
  • Delete the existing connection
    Delete Existing Connection
  • Add a new connection
    Add a new connection
  • Select Ethernet and click Create
    Select Ethernet and click Create
  • Choose the Ethernet adapter from the list then click Save
    Select Ethernet and Click Save
  • And you should now see a message saying “Connection Established”
    Connection Established

After performing the above steps, my connection was restored. Now I just need to figure out why this is happening because it has happened on two (2) occasions. But at least I know how to get it resolved so I’m okay for now. I hope this helped.

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