Intel® Ethernet Connection I219-V Intermittently Disconnects from the Internet

Intel® Ethernet Connection I219-V getting disconnected every few minutes or so from the Internet.

Follow the steps below to fix the issue:

1. Use a known working Local Area Network (LAN) cable.
2. Update the driver to its latest version.
3. Ensure that Speed & Duplex settings on the Advanced tab property of the Intel® Ethernet Controller is set to Auto Negotiation. Forcing link can result in a speed-duplex mismatch. This is common when one device is set to forced and its link partner is set as Auto-Negotiate.
4. Test the connection using wireless to further isolate the issue.
5. Disable Allow the computer to turn off this device to save power on advanced properties of the Intel® Ethernet Controller.
6. Ensure that Basic Input/Output System (BIOS) is updated to its latest version. For the specifics on the BIOS update, contact the Original Equipment Manufacturers (OEMs).
7. Check if the issue would still occur while the antivirus firewall is turned off. If it fixes the issue, this could be related to antivirus software that is having an issue with the latest drivers. We highly recommend that you contact the antivirus software manufacturer for further assistance.
8. Test the connection on a different router or another port from the router.
9. If the issue still occurs, contact your motherboard manufacturer for further assistance as the controller is embedded to the Original Equipment Manufacturer (OEM) system.