Very Slow Download Speed Fedora 30 Solving

Fixing System

2. 2. Looking up Interface ID

   Find out Network Device ID
   Simply play:

   ifconfig -a

   And in the output you should recognize your Interface Identifier:

   

3. 3. Fixing Network

   Now to Fix Network Interface
   Run:

   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