So I have a sightly bizarre problem. Every time my macbook is connected to the internet after about 2 minutes not only does it drop out but it cuts the wifi out for the other devices as well ie phone/ other macbook/ playstation etc. I know this because when I've turned the wifi off on my laptop, it works absolutely fine on other devices. I've restarted it multiple times and yet still no luck, and Im concerned it might be a virus. Does anybody have any suggestions/ advice? I REALLY need this fixed as I do an online university course so this needs fixing asap, thanks!