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Wired network drops when resuming from S4 on a Dell Laptop and Dock You may experience an Ethernet issue when you resume from Windows hibernation (S4) on a Dell laptop that connects to a Dell Type-C docking station: This affects the following Dell laptop families: Precision Mobile Workstation Dell Latitude Laptops Dell XPS Laptop Family Dell Pro Laptop Family This affects the following Dell docking peripherals: Dell Dock (WD19 and WD19S) Dell Performance Dock (WD19DC and WD19DCS) Dell Thunderbolt Dock (WD19TB and WD19TBS) Dell Dual Charge Dock (HD22Q) Your docks LAN port behavior and the ports link and activity Light Emitting Diodes (LEDs) are OK. The Ethernet controller driver in the Device manager does not have any Yellow or Red Bangs or marks. However, there is no network connection detected.
The engineering team identifies from LAN driver logs that this happens due to a change in v11.16.20. (This is a side effect of changes to improve the connection in low power and add a wait queue.)
Note: You must have administrator rights on your connected laptop to make any operating system changes or update any software. You can resolve this by restarting your laptop and updating the Ethernet driver to Realtek USB Gigabit Ethernet (GBE) Controller Driver , version 1156.17.20.1030, A31 or later . Use the instructions in the following link to download and install the Realtek-USB-GBE-Ethernet-Controller-Driver_4JK0H_WIN64_1156.17.20.1030_A31.exe update file: Dell Knowledge Base Article: How to Download and Install Dell Drivers Back to Top
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