Recently my built-in Ethernet port will not enable EXCEPT when my laptop is plugged into the docking station, in which case it works fine. When I try to enable the port, I get a "connection failed" message.
I have a Latitude D810 running XP with a Dell-supplied Broadcom NetExtreme Gigabit Ethernet card. Anybody have an idea what's going on? Not having connectivity when travelling is a real pain! Thanks!
Go to Device Manger, expand the listing for Network Adapters, right click the Broadcom Gigabit device and select Porperties. On the Power Management tab, put a check mark next to "Allow the computer to turn off this device to save power".
If that doesn't fix it, Open the Dell Quickset Utility and see if there is an optoin for Internal Network Card Power Management. If there is, select it and remove the selection for "Always deactivate on battery when network cable is unplugged".