Wifi doesn't wake up after system sleep

Hi,

I've got a Lenovo E550 with the BCM94352Z card which works great. I've been running it for almost 2 years and pretty much have everything sorted (even the SD card reader) except disabling the discrete GPU and my wifi issue.

What's happening is whenever the machine goes to sleep WIFI will be grayed out until reboot. It's turned what's otherwise a pretty seamless experience into a bit of a hassle (that and the abysmal battery life). I was told to check to make sure my _WAK method is executing from beginning to end, but really have no idea how to do that.

Any tips on getting this sorted (and anyone who wants to take a deeper dive into my DGPU issue) would be much appreciated.

Thanks!

submitted by /u/taintnothingatall
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