I will soon move my router with my NAS to my computer upstairs so I can have fastest speed to my NAS. The thing is, there is a computer downstairs where my router is currently is. that pc will not transfer file to the NAS as often as the one upstairs but is used daily and will sometime send file to the nas. So what is my best option to connect the pc to the router. Also, it is a old pc and doesnt have a wifi card built in. I also saw something called Powerline and was wondering if it would be a good option.
The fastest solution is to use a network cable. But that might be inconvenient, depending on how many walls you would have to go through, etc. You can also use power line networking, by plugging network adapters into your power outlets by the router and the computer downstairs. This can be a slow or unstable solution however. Lastly you can install a PCI wireless card in the computer down stairs, to get wlan support on it.