Hello there, so I recently upgraded to a 500mb 5ghz network from a 2.4mhz 100mb. I used an ethernet cable limited to 100mb and had ok internet, but then when I upgraded my internet to 500mb I got a wireless pcie adapter that supports up to 1200mhz from dlink. The problem is that then my download speed was 100mbps and now its 10mbps any fixes this is supposed to work ok at least.