RT-AX58U wifi - poor speed

[tqlis]

Hello
My ISP is 600Mbit and via wireless 5GHz I can reach online 300Mbit.
Test with wire is 600.
I tried on 2 laptops and 4 smartphones.
The same with AsusuWRT and MerlinWRT.
QOS on or off and the same.
What can do speed up?

 

[degrub]

you are likely limited by the client radio throughput, not the router. Replace all those first.

Not worth it IMO as most internet servers you would be connecting to will limit your bandwidth to around 100 Mbit/s anyway.

Wireless is a shared resource, so more than one client connected to the AP and interference from other nearby APs can all contribute to lower bandwidth. WIFI is inherently half duplex as each side waits for the other to broadcast. So 300 Mbit/s bandwidth could be the correct number even if the Link Rate is much higher.

 

[tqlis]

It is good teory.
One year ago it was 600Mbit on Asus wifi.
There is no other houses around.
I tried with other router (orange ISP) and reach 600Mbits.

I Think something wrong with software or hardware maybe.

 

[degrub]

So the question is "what changed in that time ?"
Firmware updates ?
Configuration changes ?
Power/lightning upsets ?

Does the wall adapter feel cold, warm, or very hot ?
Insufficient power to the wifi radios can cause issues.

 

[Tech9]

What can do speed up?

Impossible to tell without additional information about settings and client link speeds. Look at your Wireless Log.

 

[tqlis]

So the question is "what changed in that time ?"
Firmware updates ?
Configuration changes ?
Power/lightning upsets ?

Does the wall adapter feel cold, warm, or very hot ?
Insufficient power to the wifi radios can cause issues.

When I have discovered low wifi speed on AsusWRT then I installed Merlin WRT last update.
I didn't change any config.
Normal warm as always. Not hot, not cold.
Today I did test: acrivated AX ONLY and tried with client (only one at home has wifi 6) and test shows 450Mbit.
And I did another test: I switched to the ISP orange funbox 6 and also 300 Mbit by wifi.
You think that capacitors are finished on Asus?

 

[degrub]

Just a WAG, turn off smart connect, MLO ( if available), DFS channels off ( if available). Set Channel width 80 on 5 GHz
Did you at any point accept AiProtection license ? If so, decline and withdraw.

Have you factory reset the router and manually configured a basic setup recently ? Sometimes this solves odd issues like this.

 

[tqlis]

Just a WAG, turn off smart connect, MLO ( if available), DFS channels off ( if available). Set Channel width 80 on 5 GHz
Did you at any point accept AiProtection license ? If so, decline and withdraw.

Have you factory reset the router and manually configured a basic setup recently ? Sometimes this solves odd issues like this.

1. Smart connect is turned off.
2. MLO - not availiable
3. DFS - is turned off
4. Chanel width is 80
5. Don't have Air Protection - is disabled
6. You mean reset by button? - I didn't try. I did factory settings via "administration tab" only. I will try and come back and show settings screens of Wifi.

 

[degrub]

1. Smart connect is turned off.
2. MLO - not availiable
3. DFS - is turned off
4. Chanel width is 80
5. Don't have Air Protection - is disabled
6. You mean reset by button? - I didn't try. I did factory settings via "administration tab" only. I will try and come back and show settings screens of Wifi.

5) AND revoke license ? you have to do both if you ever enabled it.
6) full factory reset by ASUS provided method, whatever they specify. Gives you a clean sheet and no hot upgrade firmware misconfiguration.

i see you found this post which likely has most of the answer or at least the upper limits clearly explained.

Asus RT-AX58u with 1 Gig Wifi and my wifi is super slow at times. Want the best settings in DNS, Professional section, etc. Could use help please!?

I have a Asus RT AX58u router and have 1 Gig wifi. I have three networks setup. One 2.4g ( usually is used for wifi on computer if i cant hook up via ethernet which i normally always am at least with my computer) and one 5g (it usually only has two devices on it. a cell phone or two.) the last...

www.snbforums.com

 

[tqlis]

Thank you.
What does it men revoke licence.. must do both?

 

[degrub]

should be "withdraw" after disabling

AiProtection disabled but still blocking

If i enable and disable AiProtection it stops blocking, then one day later it again blocks. WTF? edit: Today i again went to enable/disable, and got license agreement popup from trendmicro, i disagreed and it turned QOS off..what is this BS my router connecting to backdoor servers

www.snbforums.com

 

[tqlis]

I did all points mentioned above and from another topic and no changes.
Wifi logs, shows my client connected to 5GHz (1 meter from the router) and shows 433Mbps (-54dB and sometimes -45dB), so if I reach 330Mbits on speedtest, then I think it is all what I can "squeeze".
I don't know why it shows 433MBps in logs if AC clients can run with about 1Gbps - maybe there is the rub?
I also tried with switching off AX, I've chosen wireless mode: AX/AC/N mixed, and "100" other combinations.

I will test it with AX client when I replace wifi card in my laptop, I think tommorow.

 

[ColinTaylor]

I did all point mentioned above and from another topic and no changes.
Wifi logs, shows my client connected to 5GHz and shows 433Mbps, so if I reach 330Mbits on speedtest, then I think it is all what I can "squeeze"?

Your TX Power is set at minimum. Change it to maximum and test again.

 

[tqlis]

I've just tested with Tx Power set on max.
Still 330 Mbits on speed test.

No difference if it is max or min.

 

[ColinTaylor]

I've just tested with Tx Power set on max.
Still 330 Mbits on speed test.

Post an updated screenshot of your Wireless Log page.

 

[tqlis]

Attached.

 

[ColinTaylor]

Attached.

That is the fastest your phone will go. It only has one stream operating at 80MHz ac. I have a Galaxy A14 with the same Wi-Fi specs and the most I can get out of it is 320 Mbps.

 

[tqlis]

Then I should replace clients?

 

[ColinTaylor]

Then I should replace clients?

330 Mbps is more than adequate for a mobile phone IMHO. I don't know what other clients you have, what their specs are or what you use them for.

 

[Tech9]

Then I should replace clients?

No, 300Mbps is more then enough for a phone/tablet and most browsing/streaming devices.

- use Performance for Tx Power, Power Save turns the router into 1-stream
- use control Ch.36 @80MHz bandwidth, Ch.52 is in DFS range and on radar detection your Wi-Fi will cut off