Hey you guys whats up. Recently I have been having some issues with the wi-fi. I have around 10 devices usually connected and the speed is 50 mb down and 10 up. The thing is that the laptops wont connect. My desktop, parents smartphones, and our school laptops will connect but my sis and moms laptop(windows 8) and my dads laptop (windows 7) wont connect at all. The router I have is a linksys ac1900 router and I use Time Warner Cable for my internet. PLEASE HELP and thanks in advance.,