My 2016 macbook will seemingly drop transfer rates for no reason. I will be surfing along happily at 135Mbps N speeds until I notice that I can't load anything. When this occurs I hold option and click the wifi button to find that my TX rate is 7Mbps (although nothing will ever load when it reports this). This occurs at both home and work networks. I must either turn the wifi off and on or wait for it to suddenly go back up again. Anybody else have this issue? Possible fixes? Edit: One more interesting detail. The problem is also occurring in Windows 10. It's always 7mbps.