A:Answer I have 100 mbps internet and have no issues playing xbox online while my wife streams movies in the next room. I don’t know why you would be having lag unless your current router is quite outdated. Older routers don’t have the same technology as the new ones and this being dual band, it should provide with a better quality wireless experience. Even if they are 2-3 years old. Right in the app used to set this up and control and monitor your internet, it will show how many devices are connected. If you have too many things trying to stream, you will eventually run into issues. With 150 mbps you shouldn’t be having issues right now, I’m sure a new router would fix any issue you are having with the old one. Especially if it is more than a few years old. I highly recommend this package for ease of setup, use, and quality of WiFi