I have a mid-2012 retina 15" MBP. WiFi works fine in OS X, but in boot camp (windows 7 x64):
- I can see, but cannot connect to my 5 GHz network (n only, 40 MHz channel)
- I can connect to 2.4 GHz (BGN, 20 MHz channel), but the connection has latency spikes and frequently drops.
Wifi chip is Broadcom BCM43xx, router is Linksys E3200 running firmware 1.0.04. Signal strength does not seem to be a factor. I've also tried updating the boot camp drivers, device manager shows "Broadcomm 802.11n Wifi Adapter", driver version 220.127.116.11. Is there something I could tweak to improve compatibility?