Dell ThunderDock WD22TB4 User Manual

Page 35

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Table 18. Symptoms and solutions (continued)

Symptoms

Suggested solutions

●

First power off the docking station by disconnecting
the Type-C cable and then removing the power adapter
from the dock. Then, power on the docking station by
connecting power adapter to the dock before connecting
the Type-C cable to your computer.

●

Undock and reboot the system if, the above steps do not
work.

3. The video on the attached monitor is not displaying as an
Extended Monitor.

●

Ensure that the Intel HD Graphics driver is installed in the
Windows Device Manager.

●

Ensure that the nVidia or AMD Graphics driver is installed
in the Windows Device Manager.

●

Open the Windows Display Properties and go to

Multiple

Displays

control to set the display to the extended mode.

4. The USB ports are not functioning on the docking station.

●

Ensure that the latest BIOS and drivers for your computer
and the docking station are installed on your computer.

●

If your BIOS Setup has a USB Enabled/Disabled option,
make sure it is set to

Enabled

●

Verify if the device is detected in Windows Device
Manager and that the correct device drivers are installed.

●

Ensure that the docking station is connected securely to
the notebook computer. Try to disconnect and reconnect
the docking station to the computer.

●

Check the USB ports. Try plugging the USB device into
another port.

●

First power off the docking station by disconnecting
the Type-C cable and then removing the power adapter
from the dock. Then, power on the docking station
by connecting the power adapter to the dock before
connecting the Type-C cable to your computer.

5. The High-Bandwidth Digital Content Protection (HDCP)
content is not displayed on the attached monitor.

●

Dell Dock supports HDCP upto HDCP 2.2.

NOTE:

User's monitor/display must support HDCP 2.2

6. The LAN port is not functioning.

●

Ensure that the latest BIOS and drivers for your computer
and the docking station are installed on your computer.

●

Ensure that the RealTek Gigabit Ethernet Controller is
installed in the Windows Device Manager.

●

If your BIOS Setup has a LAN/GBE Enabled/Disabled
option, make sure it is set to

Enabled

●

Ensure that the Ethernet cable is connected securely on
the docking station and the hub/router/firewall.

●

Check the status LED of the Ethernet cable to confirm
connectivity. Re-connect both ends of the Ethernet cable
if the LED is not lit.

●

7. Cable LED is not ON after it is connected to your host.

●

Make sure the WD22TB4 is connected to AC power.

●

Make sure the laptop is connected with the docking
station. Try to disconnect and re-connect again with the
docking station.

●

Make sure that the host port supports MFDP.

Troubleshooting the Dell Thunderbolt Dock - WD22TB4

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