USB2 powered external 4 port hub shuts down my notebook???!!!

Hi to all, first time user of this forum.
I recently bought a Satellite P505D-S8930 notebook and it works great, however, I needed more USB2 ports so I bought an externally powered 4 port hub. The hub works great but when I close the lid on my notebook the whole system shuts down rather than the notebook going into sleep mode. I open the lid again and the notebook is dead!! Pressing the ON button doesn't even wake the notebook up. I actually have to unplug the external hub, take the battery out and then put it back in, and then wait approx. 5 minutes before the notebook will power back up again. I decided not to use the external hub and see if there were any problems and the notebook works like new. I also noticed the battery had drained whilst the external hub was plugged in and the notebook was in sleep mode. Anyone got any ideas why this is happening?? And is there an external multiport USB2 hub that is specifically good for our Toshiba notebooks??? Very eager to find out if anyone else has had this sort of problem. Any assistance offered would be appreciated. Thanks in advance......BAZ

Satellite P505D-S8930
Try this. Open Device Manager (devmgmt.msc), expand Universal Serial Bus controllers, right-click on a USB Root Hub, click Properties, and look on the Power Management tab.
If there's a setting like this, uncheck it.
Allow the computer to turn off this device to save power.
You may need to play around with these a bit.
-Jerry

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USB2 powered external 4 port hub shuts down my notebook???!!!

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