what are you hoping to achieve?

Jase2985:

 

what are you hoping to achieve?

 

That's what I was just thinking reading this.

If you only have 2.4GHz 802.11n clients you're going to get no real world benefits by disabling legacy B/G wireless.

Looking at the replies it seems there is no real world performance gain on choosing a dedicated transmission mode of n when compared with having mixed mode b/g/n.

My current setup is 2.4g at b/g/n and 5g at n/ac I just thought that there will be some gains when I just select n for my 2.4g, also the fact that my old router allows me to do so.

I had a huge improvement on a wireless bridge between buildings changing it to greenfields N mode instead of supporting all modes. I assume it just disregarded the slower speed transmissions and transmitted over the top of them. I also think it stopped it from reverting to 20MHz when I had set it to 40 because of other networks. Got great speeds across that bridge compared to most other 2.4GHz wifi - about 8m between buildings and was able to max out the 100 megabit ports on the AP's

doesnt the router's wifi allways drop to the lowest `standard` of devices trying to connect, (or devices detected)
so if someone with G(or B) is trying to connect (or just detected) , all the router wifi will drop to G (or B) ??

there could be instances where you dont want any G or B devices connecting

Why would anybody want to be connecting to b/g now days. Might as well go back to my first 300 bps modem 

^One of the reasons why I want to force the router to only do N :)

1101:

 

doesnt the router's wifi allways drop to the lowest `standard` of devices trying to connect, (or devices detected)
so if someone with G(or B) is trying to connect (or just detected) , all the router wifi will drop to G (or B) ??

 

there could be instances where you dont want any G or B devices connecting

 

It won't quite drop to the lowest standard but will impact things.

The fix for that (which is a far better solution) is simply not to connect B/G devices.