Do I need a switch for my NAS if it lags up my router really bad?

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!
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More about switch nas lags router bad
  1. what router? Is it an older router. My ISP recently upgraded my inet to something called Docsis 3.0, which gives me speeds of 60mb/s. My old router couldn't handle it regardless of switches on my network, it would just crap out when the full bandwidth started to get used. I got a new router and it all went away.
  2. It appears from your diagram that the Computer and NAS are on the same local area network connected through two ethernet ports on your router.

    What make/model router do you have? Do you know if the ethernet ports on the router are a hub or a switch? Traffic between your computer and NAS shouldn't affect the bandwidth of the other devices, unless everything was connected together on a hub.

    Are the ports on the router 100mbit or 1000mbit? If your router only has 100mbit ports, then upgrading to a 1000mbit switch would certainly increase performance between devices, as long as your devices support 1000mbit connections.

    Also, I would check your network cabling between all your devices to make sure they are at least Cat5e if you're connecting at 1000mbit. I don't know for sure, but inadequate cable ratings may add additional crosstalk and interference between network ports.
  3. nthreem said:
    It appears from your diagram that the Computer and NAS are on the same local area network connected through two ethernet ports on your router.

    What make/model router do you have? Do you know if the ethernet ports on the router are a hub or a switch? Traffic between your computer and NAS shouldn't affect the bandwidth of the other devices, unless everything was connected together on a hub.

    Are the ports on the router 100mbit or 1000mbit? If your router only has 100mbit ports, then upgrading to a 1000mbit switch would certainly increase performance between devices, as long as your devices support 1000mbit connections.

    Also, I would check your network cabling between all your devices to make sure they are at least Cat5e if you're connecting at 1000mbit. I don't know for sure, but inadequate cable ratings may add additional crosstalk and interference between network ports.


    It's a D-LINK DIR-655 like many people have here. It's still the best reliable one around. I got mine in 2008 or something and today, they are still selling it in the market. I have already updated to 1.35FW NA which is the latest. All Right now, I have all ethernet ports connected to my router including my VoIP modem, AV HomePlug, etc.
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