GL.iNET Flint 2 (GL-MT6000) discussions

thedude · March 3, 2024, 11:47am

Officially it's not, but some devices support it. So with it enabled I know that my phones link speed is 173 Mbps instead of it's usual 144 Mbps.

github.com/openwrt/openwrt

[WIP,RFT,RFC] mac80211: add support for QAM-256 in 2.4GHz 802.11n

openwrt:main ← Ansuel:vht-2.4-support

opened 03:33PM - 14 Jun 23 UTC

Ansuel

+2755 -1

Add support for QAM-256 in 2.4GHz 802.11n. This is non-standard and comunicate …vht capabilities in 2.4GHz 802.11n permittin, for supported clients, to benefits for additional data rate. Many driver supports this, for a start enable this for ath10k and ath11k. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> --- I would ask the community some effort to document all the info we have about this feature, benefits ANY PROBLEM with this. The intention is to propose this upstream and I need some very good reasoning for this hoping they don't NACK this directly. Also I would ask if there is any info on a parallel feature like QAM-1024 that should be present in 802.11ac How to enable --- Set for 2.4GHz `htmode` to `VHT20` (or `VHT40`) FOR SUPPORTED CARD Supported card --- - qca9984 (Netgear r7800) Supported device from report --- - Samsung Galaxy S21 Additional Info on the thing --- In [1] there was an interesting discussion about this. The summarize was that it's obviously non-standard but actually not that non-standard since this just push vht on 2.4GHz, something that was used later for wifi ax. [1] https://www.cwnp.com/forums/posts?postNum=307375 <sub>Continuation of #12594 and #2522</sub>

I believe this pull request also depends on this one to actually function. Although, you'd need to make further changes to get any of this working at this point anyway. And that's why I tested with ImmortalWrt instead, since it's already got a setting for it.

I'm saying that the 2.4GHz issue doesn't seem to affect all devices that'll use 802.11ax. For example, I know that the Google Pixel 8/7 as well as Intel AX210 modules have no issues at all and can easily achieve 150 Mbps. But phinn said that his iPhone 15 can't get more than 55 Mbps when using 2.4 GHz via the GL-MT6000, yet he'll get 150 Mbps from his Ubiquiti U6 when he's using the same settings as the GL-MT6000.

If you limit 2.4 GHz to N mode and perform a speed test you'll get around 40-110 Mbps. But if you install the GL.iNet beta firmware that uses the MTK driver then people are saying that you should consistently get better speeds. So, I mentioned 256-QAM applying to 802.11n because the MTK driver already supports that whereas the mt76 driver doesn't.