latency wifi 5Ghz RT-AX88U

[router89]

Hello,

Sorry in advance for my modest English.

I am having a problem with my Asus RT-AX88U router and the firmware Merlin 384.16.
When my smartphone is connected on the 5 Ghz band, my other smartphone also connected in 5 Ghz becomes slow/latency.

Is there a particular rule/settings to activate/modification to balance the bandwidth in 5 Ghz wifi ?

Best regards.

*Here is my current wifi configuration :

 

[Grisu]

First I woul try turn off AX-mode (Wifi6).

 

[Dan Ljungberg]

Try and disable this:
- HE frames
- MU-MIMO
- Airtime Fairness
- Implicit Beamforming (Explicit is fine)
https://www.snbforums.com/threads/asus-rt-ax88u-experiences-discussion.49427/page-14#post-473634

 

[router89]

Try and disable this:
- HE frames
- MU-MIMO
- Airtime Fairness
- Implicit Beamforming (Explicit is fine)
https://www.snbforums.com/threads/asus-rt-ax88u-experiences-discussion.49427/page-14#post-473634

Thank you for that answer.
Is my configuration correct now ?

However, Implicit Beamforming is similar the "formation de faiseaux 802.11.ac" and "formation de faiseaux universelle" look picture ? ON or OFF ?

 

[Dan Ljungberg]

"formation de faiseaux 802.11.ac" =ON
"formation de faiseaux universelle"=OFF
But as you can see in my signature, I don't have an AX88U, so you must test and find your best settings.

 

[router89]

"formation de faiseaux 802.11.ac" =ON
"formation de faiseaux universelle"=OFF
But as you can see in my signature, I don't have an AX88U, so you must test and find your best settings.

Thanks for your help.
After several tests, for my problem it is enough just only to deactivate "MU-MIMO" and everything works perfectly, I can navigate, watch videos at the same time on my two smartphones and more slowness, it is happiness !

I leave the other parameters by default because only "MU-MIMO" is effective. Thank you very much, it's perfect.

 

[j-voorhees13]

Hi, I experienced similar problems with 384.16 on the RT-AX88U with devices experiencing constant drop outs, poor signal and slow/erratic monitored speeds using internet speed tests. After a few days reverted back to 384.15 and everything is working again.

I incorrectly reported the issue on GitHub and was told that WiFi is closed source so ASUS themselves will have to address the issue

Thanks guys

 

[router89]

Hi, I experienced similar problems with 384.16 on the RT-AX88U with devices experiencing constant drop outs, poor signal and slow/erratic monitored speeds using internet speed tests. After a few days reverted back to 384.15 and everything is working again.

I incorrectly reported the issue on GitHub and was told that WiFi is closed source so ASUS themselves will have to address the issue

Thanks guys

thank you.

Firmware 384.16 : disabling only "Multi-User MIMO" solved my slowness/drop outs/internet problem on wifi.

 

[j-voorhees13]

That's great to know that helped, should I try upgrade again to 384.16. I might wait for the next update to see if it is fixed. I feel its probably something that should be left on to maximise performance of devices competing for bandwidth. Its enabled on 384.15 and works great.

Thank you

 

[SheikhSheikha]

If you use Apple Devices: reset network settings and make a new wifi connection. Apple has the habit to store some undocumented goodies with the password profile. It is advizable to add this as a standard practice with every firmware update/upgrade (for Macbooks: remove the wifi connection, reboot and make a new one).

 

[ryannathans]

I am having the same problems and disabling MU-MIMO on my RT-AC5300 resolves the problem too... going back to 384.13 for example works flawlessly

 

[j-voorhees13]

If you use Apple Devices: reset network settings and make a new wifi connection. Apple has the habit to store some undocumented goodies with the password profile. It is advizable to add this as a standard practice with every firmware update/upgrade (for Macbooks: remove the wifi connection, reboot and make a new one).

Great, thanks for the advice. I'll give that a go on the next upgrade, bit of a pain as there are a few Apple devices to do after upgrades. We do what we gotta do

 

[j-voorhees13]

I am having the same problems and disabling MU-MIMO on my RT-AC5300 resolves the problem too... going back to 384.13 for example works flawlessly

Hopefully it will be fixed in future release, unless its just a case as SheikhSheikha stated that Apple Devices have to be reset due to 'feature' to how they handle password profiles

 

[Squall Leonhart]

Funfact: It's still not fixed.

Was wondering why my usually 3ms ping average to 1.1.1.1 was seeing spikes upwards of 1000ms on my AC86 media bridge, connected to AX88U, i never saw this on my AC88U A2 because mu-mimo was broken in silicon there, even though the setting was exposed.

All this time i've been thinking it was my introducing a AC88U A6 at the back of the house as a mesh node, nope, its the bloody AC mu-mimo feature being a bugger.