I have a 2.4ghz 802.n 300mbps wifi pcie card in my pc. However, my internet speed is extremely slow: its speed hits 1mbps and whenever I try downloading something it fails to do so. On Windows 10 I am connected to the internet and no matter what I do I cannot get a faster speed. Is it because my router is on the ground floor and my pc is 2 floors above? If so, will getting an ethernet port significantly help?