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Table 17. Symptoms and solutions (continued)
Symptoms
Suggested solutions
15. Undersized power adapter warning message that is displayed
and cable LED are off.
•
The docking connector has disconnected from the system's
Thunderbolt ports. Reconnect the docking cable from the
system, wait for 15 seconds or more, and then dock again.
16. No external display. USB or data and cable LED is off.
•
The docking connector has disconnected from the system's
Thunderbolt ports. Reconnect the docking connector.
•
Undock and reboot the system if the above steps do not work.
17. When system or dock is moved the cable LED turns off.
•
Avoid moving the system/dock when the docking cable is
connected to the system.
18. With Ubuntu 18.04, WIFI will be turned off when the docking
station is connected to the system and the WIFI turns On again
after rebooting the system.
•
Please uncheck the option
Control WLAN radio
in BIOS.
•
Option is available in - Settings -> Power Management ->
Wireless Radio Control.
40
Troubleshooting the Dell Thunderbolt Docking Station WD19TB