I currently have a single band, Linksys router that supports N/G/B. I have it set to G, since I read that if one of my devices is G and setting it to Mixed will default to G anyway. I am thinking about buying a ASUS RT-N56U which has simultaneous 2.4/5GHz Dual Band. Does this mean I can have N & G speeds at the same time? Before I buy a new router, I would also like to confirm the Mixed setting on my current router. Say only my wireless N laptop is connected to the router, will I get N speeds? If my wireless G laptop connects, will both get G speeds? Once the G laptop disconnects from the router, will my N laptop get N speeds again? The G laptop is only used maybe 1-2 times a week then shutdown when not in use.