Will my internet speed decrease if I connect two routers together?

Question

I have ethernet connection and its connected to a router and then to my computer using the LAN port of the router . Everything is fine but the router is kept on another floor and thus , I cannot use wifi on other devices as I get very weak signal . So , my question is that if I buy another router and connect it with my first router and finally connect my computer with the second router , will this affect my internet speed ?

Answer 1

If the two routers are connected through cable the answer is almost no (you pay a little overhead).

But you don't need another router, an access point (or a repeater) is a better choice.

Note: you must choose a different non-overlapping wireless channel for the 2nd router. http://en.wikipedia.org/wiki/List_of_WLAN_channels

Answer 2

Will it decrease your speed? Yes. Will it decrease your speed noticeably? No. Local network connections and routing are fast enough that they won't add a significant overhead.

Answer 3

Yes it can slightly affect the speed and also it will do 2x NAT translation which can make issues, so this is not recommended.

What you need to buy is a wireless access-point (AP), which doesn't have a router function (or it can be disabled). You just connect the AP to your router via cable as another computer and it will create a wifi network for you.