Latitude E6410 slow when in docking station

On a couple of occassions I've seen a lot of lint build up on the exhaust port of the cpu fan. So much so that it looks like a filter. The fix is to remove the power and battery, take off the back, disconnect the power to the fan, remove the two screws and remove the fan. Blow out the fan and the exhaust port. Re-install the fan, etc. May help the overheat.

I have a dell E6440 running Win 7 pro. When undocked, full speed! When docked, System (ACPI.sys) is always using about 15-20% of my CPU. That makes it slow!

My solution: Network Connections -> Intel(R) Ethernet Connection I217-LM -> right click Properties -> Configure -> Power Management -> section Wake on LAN -> disable "Wake on Magic Packet" AND disable "Wake on Pattern Match."

I unchecked all the other Power Management features for the network adapter as well, such as the ability to respond to ARP requests while sleeping. Having good system performance is much more important, so I figure why chance it? Better to disable.

Another interesting setting on that network adapter is "Interrupt Moderation". This is unrelated to the CPU problem, but I was getting really slow LAN speeds, especially on TCP/IP downloads (per TamoSoft Throughput Test.) Once I disabled "Interrupt Moderation", my LAN speeds (on a 100 Mb LAN) went from <2 Mb/sec to around 70 Mb/sec. But - I did have to update the network adapter driver from the Intel website first so I could see that and other advanced settings.

My 6410 and 6510 both have the same issue. I stopped using the docking stations all together. What a waste of money for a product you can't use. I have two docking stations for the E series and a D630 with a port. The D series has no issues. Anyone find a fix for this yet?

I see this was never marked as solved, I have a user who just reported the same issue. All drivers are up to date, she docks the laptop but remains on wireless. when not docked she gets 21 mbps up and down, but when docked on gets .11 mbps up and down..

I've had a similar problem with 2 different sources. One was a bad docking station. Anything I did on the docking station was slow. In the other instance, the wired and wireless working at the same time seemed to cause the issue. The solution was to set the wireless to turn off when the laptop was docked. Go to the Properties page of the Wireless Network Connection. On the Networking Tab, under the 'Connect using:' section, go to the Configure button. On the Advanced tab look for the 'Disable Upon Wired Connect' and set that to 'enable'.

Try uninstall Dell alps Touch pad Driver and clean the trojans.

I own a E6430 and had a same problem. Internet download speed went from 26Mbps down to 2.6 Mbps, problem with bt keyboard (logitech dinovo edge) and i have tried 2 docking stations, 2 power supplies and got the same result.

Uninstalling a Dell alps helped in my case.