2.4ghz vs 5ghz network speeds Hi all,

I was testing the speeds of my 2.4ghz and 5ghz wireless networks (just using fast.com or some equivalent), and was surprised to see that my 2.4ghz network is being clocked at over 3x the speed of my 5ghz network (300mbps+ vs 80mbps). What gives? I thought that 2.4ghz was supposed to be longer range but slower speed. FWIW, the computer I was testing on was literally 5 ft from the router itself.

Thanks!