My 2011 MacBook Pro always drops the wifi connection whenever I plug in the Ethernet cable into it. Is this a known issue? I always notice since I start to download something then plug in my Ethernet cable so it can download faster. The WiFi connection will pick up a few seconds later. By the way, my WiFi is 5ghz N. If if this has already be addressed or mentioned before, sorry. I couldn't find it when searching MacRumors. Thanks.