i noticed in El Capitan that when using both bluetooth mouse (in my case, apple magic mouse) and wifi, my internet connection drop tremendously and almost unusable. even opening google website took 3minutes! when i turn off bluetooth, internet connection seems to be fine again. i tested this behaviour numerous times and strongly assure that its the bluetooth that's causing problem. my router supports only 2.4ghz so im suspecting that's the connection bottleneck. i've tried trashing bluetooth plist, reset pram/smc and changing dns server and still, the problem persist anyone else with similar problem?