"Yes, the wifi and comes and goes and I tried almost everything out there and they DO NOT WORK. The only thing that worked for me was uninstalling the wifi card driver and install a new one. Here's the link: support.lenovo.com/en_US/detail.page?DocID=DS031815 Just follow the direction on uninstalling the old one and installing the new one. The problem with the graphics card is that intel hd4600 is the default graphic card and NOT the nvidia gt750m. I gave this laptop 4 stars because I was miserable on the first 5 days when I got this laptop. Wifi was on and off and the interchangeable graphics card was just plain annoying. Has to spend extra time finding solutions!"