Quote: Originally Posted by kegobeer
Did you go to the device manager, find your wifi card, and make sure to deselect the option to turn off to conserve power? Also, if it just started happening to both computers a month ago, I'd look for a common install/removal/update that was done to both of them.
I found just the opposite. Telling Windows that it should manage the device enables it to re-initialize the interface on a power-on event, resulting in it connecting. I could not get my card to automatically connect until I enabled this. At the same time, in power options -> advanced -> USB settings -> USB selective suspend DISABLED and advanced -> Wireless Adapter Settings -> Power Savings Mode set to maximum performance. The adapter is now connected by the time I am back from sleep.
Mine is a desktop. I don't know whether the latter two might drain the battery quicker on a laptop.
EDIT: But maybr we are talking about two different things. What I have enabled and found necessary to enable is the "allow this Computer to turn off this device to save power" in the wireless adaptor -> configure -> power management tab.