My set up for my NAS is like this 'COMPUTER <-> ROUTER <-> NAS' but my router also have a lot of stuff connected too so what happens is that when I transfer files from my computer via my router to my NAS. It lags up other computer in the network. How do I prevent this? Do I need to add a gigabit switch between ROUTER and NAS? Would this make a difference at all? Right now is my router being stressed out from too many devices and my WIFI kept going down. I don't have much knowledge rather if I need a switch or will it even make a difference significantly or the same. Please help me out, thanks!