2. Installing Requirement
Then to Install Required Software
sudo apt install ethtool
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
3. Looking up Interface ID
Find out Network Device ID
And in the output you should recognize your Interface Identifier:
4. Fixing Network
Now to Fix Network Interface
sudo ethtool -s [DEVICEID] speed 1000 duplex full autoneg on
So for instance:
sudo ethtool -s enp4s0f0 speed 1000 duplex full autoneg on
Auto-Negotiation is a mechanism by which a device automatically chooses the best performing transmission mode based on its counterparts’ characteristics.
And the full-duplex mode enable to send and receive packets simultaneously.
Thanks to: phoenixnap.com