40MHz on 2.4 is note widely supported, and for good reason - it sucks up the entire unlicensed 2.4GHz band (if you include the 802.12 mask). On 5GHz, 20/40 are supported, and 80/160 in current and future versions of 802.11ac. On Jun 14, 2015 7:56 PM, Alexander Maassen <outsider@scarynet.org> wrote:
Shoot me if i'm wrong, but doesn't a mac prefer MIMO in order to work correctly?
On Sun, June 14, 2015 8:42 pm, Brielle Bruns wrote:
On 6/14/15 12:33 PM, Anurag Bhatia wrote:
Hello everyone,
I am running a TP Link TL-WR1043N which (as TP Link says is a) 802.11n router working on 2.4Ghz (no support for 5Ghz). I am running it with flashed OpenWRT.
While using option to pick 40Mhz, I see my Mac only gets 20Mhz to use and speed is always 130Mbps. There's no other SSID nearby and I am sitting next to router for testing.
This brings me to question - Has anyone successfully used 40Mhz with 2.4Ghz on 802.11n standard with Apple Macbook? I wonder if it's limitation on the chipset or something else.
Everything that I've seen/experienced says that Apple devices won't use 40mhz channels with 2.4 due to the overlapping bands/lack of good separation between channels.
However, I'm not sure if this specifically applies to just the Airport APs like the Extreme, or to the laptops as well, as I use AE's at home, and the Unifi APs I do have in service all have 20mhz channels only set on them to avoid issues.
-- Brielle Bruns The Summit Open Source Development Group http://www.sosdg.org / http://www.ahbl.org