06-12-2011 03:39 PM
I've got some issues with the network connection when leaving the notebook unattended, while it's still in the docking station.
The Thinkpad is a T400s (2815-A32). The docking station is a "Series 3 Mini Dock Plus" with the 90 watt power supply.
I haven't been able to figure out what causes that behaviour. The same energy profiles are set in the energy manager which are basically no energy saving at all (no stopping harddisk, no standby and especially no suspending to disk). And the "Allowing disabling of hardware for energy saving purposes" for the network adapter is disabled in the hardware settings, too.
But for some reason the lan port at the docking gets disabled (which I assume is for energy saving purposes).
Is there some option I've overlooked in the energy manager to change this?
06-14-2011 05:53 PM
06-28-2011 01:43 AM
Sorry for the late reply. I finally got the time to test it after uninstalling the power manager.
The result is the same, after 45 min (I measured the time by playing a video over network shares) the network connection on the docking gets deactivated.
Bios/Drivers/Software are up to date.
I tried to find any matching option (set to 45 min) in the built-in energy manager of the Windows 7, but I haven't found any.
Also I double-checked if the disabling of the device for energy saving purposes is set to no in the device manager, it is...
Interesting is why it wouldn't happen when undocked. Do the electronic signals of the network port at the docking station directly getting routed through, or are there any converters?