My rMBP actually did not have WiFi issues during the earlier 10.10 releases, but soon after I upgraded to 10.10.2, it CONSTANTLY loses connection to WiFi. I try to send out an email to a professor; I look up and the icon is gray. I have to log out or in some cases restart (which I almost never do anyway) for it to work. Yes, I might be on a shoddy campus network, but nobody else or my 5s loses connection frequently the way I do. Does anyone have this problem and will 10.10.3 address this? I can't believe I've fallen victim to something everyone said was fixed...