My laptop won't stay connected to any of the networks outiside of my house

[olkinia]

I have an Asus R556L. It connects with the wifi but after about 10-15 min is disconnects signaling yellow triangle. When I try to connect with the network again it says "unable to connect to this nework". The only way it would connect again is by restating it but even then it connects for a short period of time. I don't have this problem when I am at home..
Thanks for any help!

 

[KiL3MaNjAr0W]

Update your drivers for your wireless card, also get all your windows updates. If this does not work try re-seating the wireless card in the computer. The card may also be faulty if all this fails, you may want to swap out your WNIC or try a USB WiFi adapter, maybe with extended range.