Network Disconnection Issues on Intel Ethernet Connection I219-LM

Summary: When using the Intel Ethernet Connection I219-LM adapter, intermittent disconnection or unstable network issues may occur.

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Symptoms

The computer shows a network icon with a warning sign, such as No Internet or Limited Access. The computer is unable to connect to online services or use network resources. The RJ45 port LEDs may not light up.

Affected Platforms:

  • Dell Pro 24 All-in-One Plus QB24250
  • Dell Pro 24 All-in-One QC24250
  • Dell Pro 24 All-in-One QC24251
  • Dell Pro Max Micro FCM2250
  • Dell Pro Max Tower T2 FCT2250
  • Dell Pro Micro Plus QBM1250
  • Dell Pro Micro QCM1250
  • Dell Pro Slim Plus QBS1250
  • Dell Pro Slim QCS1250
  • Dell Pro Tower Plus QBT1250
  • Dell Pro Tower QCT1250

Cause

This issue may be related to the Auto Negotiation setting in the adapter configuration.

Resolution

Note: Before starting the update, perform the following:
  • Back up all personal data. For more information, refer to Back Up and Recovery.
  • Connect the AC adapter if updates are being run on a laptop.
  • Ensure that power remains connected if updates are being run on a desktop.

Updating the Intel LAN driver to version 20.0.3.16 or later on the computer resolves the issue. To download and install the driver refer to the Driver Update Guide.

Επηρεαζόμενα προϊόντα

Dell Pro Max Micro FCM2250, Dell Pro Max Tower T2 FCT2250, Dell Pro 24 All-in-One Plus QB24250, Dell Pro Micro Plus QBM1250, Dell Pro Slim Plus QBS1250, Dell Pro Tower Plus QBT1250, Dell Pro 24 All-in-One QC24250, Dell Pro 24 All-in-One QC24251 , Dell Pro Micro QCM1250, Dell Pro Slim QCS1250, Dell Pro Tower QCT1250 ...
Ιδιότητες άρθρου
Article Number: 000367262
Article Type: Solution
Τελευταία τροποποίηση: 18 Δεκ 2025
Version:  5
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