There are various reasons and configurations that can benefit from having more than one network adapter present on a PC.
For users with newer networking products, featuring 2.5Gbps link rates or greater, it may be beneficial to prioritize that network connection over others on your PC that are still connected to your network/LAN.
To prioritize a network adapter on Windows 10, perform the following steps:
- Press Windows Key ( ) + X, or right-click the Start Menu button, then choose 'Network Connections' from the list that appears
- Select 'Change Adapter Options'
- Right-click the adapter you wish to have the highest priority, and choose 'Properties'
- Double-click the text of the item called 'Internet Protocol Version 4 (TCP/IPv4)
- This opens the Internet Protocol IP v4 properties
- You should be in the 'General' tab by default, click the 'Advanced' button
- Uncheck 'Automatic metric'
- Input a number
- The lower the number is, the higher the priority it will have
- Click OK on the windows you've opened thus far to accept the changes
