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Forums › LAN (ethernet/Wifi/routers/Bluetooth) › Wifi extender
jman009

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#207721 11-Jan-2017 05:35
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I've just moved recently and noticed that the wifi in my room furthest from the router loses connection often, so I decided to purchase a belkin n600 dual band extender.
I currently get 100mbps through my router but my extender hits 40mbps even though it can get speeds of up to 300mbps.
Have I missed something or done something wrong in my setup, any assistance would be greatly appreciated

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sbiddle
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  #1701209 11-Jan-2017 07:15
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It sounds like your WiFi extender is working perfectly and as designed.

 

I will however clarify that by adding a few comments. The topic of WiFi extenders comes up every few weeks in here in a new post so to avoid sounding like a stuck record (you can easily search every other post) I'll be very brief with my explanations.

 

IMHO WiFi extenders are the worst product ever built and should not be used. Ever. They work by halving the maximum throughput of your wireless signal and won't even get that in many environments because people stick them in a dead spot to try and improve their WiFi. The worse your WiFi signal strength, the slower your speed, so when you place one of these in an area with poor coverage your maximum throughput will drop even further as the extender doesn't have a good signal to work. In this situation your WiFi from your main access point / router will also suffer due to a client with poor TX/RX rates bogging it down.

 

As for your "up to 300Mbps WiFi" this is nothing but a marketing claim that's impossible to get in the real world. 300Mbps WiFi is a maximum layer 1 theoretical speed. Real world WiFi speeds are around 1/2 of these, so the maximum possible speed of a "300Mbps" WiFI AP is around 150Mbps. To get this you also require 40MHz channels which should never be used as the 2.4GHz spectrum is so overcrowded you will never get good performance and should only ever use 20MHz channels.

 

With a 20MHz channel your layer 1 speed is now 150Mbps, and real world throughput is around 1/2 this. Add to the fact that in your typical urban environment 2.4GHz spectrum is so overcrowded you'll see that 30-40Mbps is typical maximum real world performance of any 2.4GHz WiFi equipment.

 

 

 

 

 

 

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