It will work for a while and then randomly disconnect. Its quite annoying, especially when streaming any sort of media. I have tried it on multiple networks and it happens regardless of network. At home, I have 3 bars on the wi-fi indicator.
I am aware you probably need more information. Please tell me what you need so and how to find it. I don't have any programming skills, and bought the laptop on the hope that "Linux for Humans" was real. Now I find myself going back to my old mac just to avoid the problem.
02:00.0 Network controller : Atheros Communications Inc. AR9462 Wireless Network Adapter [168c:0034]