Symptoms
Affected Platforms:
LatitudeInspironXPSVostroPrecision MobileG Series
Affected Products:
Dell Dock WD19Dell Dock WD19SDell Dock WD19DCDell Dock WD19DCSDell Dock WD19TBDell Dock WD19TBSDell Dock WD22TB4
Note: This issue affects any computer that uses the Type-C port for docks.
You may see a preboot warning message that your dock fan has failed. This can be on any of these docks.
This message can be skipped, and the dock appears to function aside from the warning. The issue has been observed to be intermittent sometimes and persistent in others.
Resolution
WD19, WD19S Series, and WD22TB4 Updates
Dell Technologies recommends resetting the dock, updating Windows, and updating the drivers for the computer and the dock when troubleshooting a Docking Station problem.
Note: Your computer must be docked for dock driver updates.
Dock Reset Procedure:
Remove the dock USB-C or Thunderbolt cable from the computer.Unplug AC power from the dock.Drain any remaining power to the dock by holding the power button for 30 seconds.Plug AC power into the dock.The dock LED on the power button should blink three (3) times.Plug the dock USB-C or Thunderbolt cable back to the computer.
Windows Operating System and Dell driver updates:
Run Windows Update to ensure that the operating system is up to date.Run SupportAssist (all models), or Dell Command | Update (Precision, XPS, and Latitude) or Dell Update (Vostro, Inspiron, and G-Series) to update the computer BIOS and Drivers for both the computer and dock. Drivers can also be manually downloaded and installed. These computer BIOS (the computer reboots when running the BIOS update), drivers, and the drivers for the dock can be downloaded from the Dell Support Website. (The USB Audio jack driver only applies to docks with 3.5 mm jacks.)Update the dock firmware
The dock must be connected to the computer during the update process to detect and install the dock firmware.Power cycle the dock once the firmware has been updated.
Completely turn off the computer, then turn the computer onTest the Docking Station to see if the issues are resolved.If the error still exists, replace the dock per the dock warranty entitlement.