Cannot Change Wireless Card Settings - freeze

Hello all

I am new to this forum, but in dire need of some help

I have a Dell 710m laptop with a built-in Dell 1370 Wireless adaptor.

Recently, my computer has been freezing while going into Standby or Hibernate, occasionally during shutdown.
I've read around and found that it may have something to do with Windows power management of the wireless card. I've tried changing that configuration, however when I push apply or ok, the window will freeze, I will lose my wireless connection and have to do a hard restart.
This also has begun happening when I use the repair command on the wireless connection. It seems as though windows cannot release the card.

If anyone has anything to offer as far as help goes I would be greatly appreciative

Thank you