Windows gets fast and stable Wi-Fi. OS X does not.

[Ultra AleM]

See? You say the connection is fast if you're closer to your router. This means that your problem is related to the reception of the radio signal itself. With distance, the signal strength falls off faster in your metal-encased laptop. Try moving your wifi router a few feet higher.

Yes, but Windows gets full speed in the exact same location with the exact same Mac.

 

[Alameda]

Yes, but Windows gets full speed in the exact same location with the exact same Mac.

I didn't understand that the comparison was Windows in the same laptop. Sorry.

I think you should definitely report this to Apple. Be clear that the performance difference is between OSX and Windows on the same laptop, and the make/model of the router. I think they would be interested in fixing this