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badbob002

3 Posts

16837

July 12th, 2020 21:00

WD19 dock kills local network when laptop is turned off?

My WD19 dock, attached to my Latitude 5400, is connected to my local LAN with unmanged switches. When the laptop is powered off, a few minutes later, devices on the closest ethernet switches can no longer communicate. The lights on the switches are still blinking so the ports are still working.

I don't really understand it but it is easily reproducible.

  1. Plug ethernet into dock and turn off laptop.
  2. On another PC on the same network, do a continuous ping of another PC.
  3. After a few minutes, ping will fail.
  4. Fixes/workarounds:
    • Unplug Ethernet cable from dock/switch
      or
    • Turn on laptop
      or
    • Plug Ethernet cable directly into laptop instead

I have no idea what is going on. Could the dock trigger some sort of power saving feature on the switch and that somehow affects all its ports?

27 people also have this problem

Tiger1957

1 Message

December 21st, 2022 12:00

After many months, I think I've finally resolved this.   Or at least my LAN hasn't gone down after 5 days of going back to using the Ethernet port on the dock.  

Hardware:  Dell Precision 5560 on Windows 11 with a Dell WD19S docking station connected to a Verizon FIOS modem/router.  There is a switch on the network, but not in between the dock and the router.

Problem:  After connecting the laptop to the dock and the dock to Ethernet, and after a wait of several hours, the nodes on the network lose connectivity to the LAN and the Internet, includes all Wi-Fi devices, televisions connected via COAX and PCs, switches and access points connected via Ethernet.  Temporary solution disconnect Ethernet to the dock and network starts coming back to life.   

Previous troubleshooting:   Updated all firmware drivers on laptop and docking station. Change from a dynamic to a static address on the laptop.  Disable power management on USB ports, disable EEE (Energy Efficient Ethernet).  Several other suggestions that didn't work.

Current solution:  Update to most recent driver for PCie GBE Family Controller (found under Network Adapters in Device Manager.
Advanced tab
Scroll down until you see the property "Green Ethernet".  9EEE is gone and I was assuming they just changed the name to Green Ethernet, but maybe there's more to it).  
Disable "Green Ethernet"
Reboot the laptop.  

vogeli

1 Message

December 25th, 2022 07:00

Turning off "Green Ethernet" solved this issue for me! Thank you very much @Tiger1957 

Daniels212

1 Rookie

 • 

1 Message

March 5th, 2024 22:30

This is still happening to me and it is beyond frustrating. This Dock is a piece of junk. how the heck is it killing my whole network. Disabling Green Ethernet did not work for me.

These docks are so bad, I can plan one to sabotage an office network.

DELL???? Where are you? we need help here

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