AX11000 long ping and big jitter on 2.4G network

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AX11000 long ping and big jitter on 2.4G network

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AX11000 long ping and big jitter on 2.4G network
AX11000 long ping and big jitter on 2.4G network
2022-10-23 15:46:51
Model: Archer AX11000  
Hardware Version: V1
Firmware Version: 1.3.1 Build 20220721 rel.61848(4555)

Hello,

 

in my home network I use an AX11000 router as the main AP.

 

My network is setup as follows:

  • Most of the heavy users are wired through a few switches to the AX11000
  • The consumer devices (smartphones, laptops and similar) all use the 5 GHz network
  • I have a some (very) thin clients on the 2.4 GHz, for IoT - less than 30 devices

 

I use powerline extenders with One Mesh, and I have great coverage all around my house.

 

As of lately, I noticed some of my IoT devices acting up, so I joined the 2.4 GHz network, and the network was unusable. I tried to ping the AX11000 from my laptop:

 

113 packets transmitted, 93 received, 17.6991% packet loss, time 112730ms
rtt min/avg/max/mdev = 3.989/932.114/3565.253/976.440 ms, pipe 4

 

As you can see, I lost 18% of the packets with a maximum 3.5 second response - something is most definitely going on. I then fired up LinSSID, which is a WiFi analysis tool for linux, and I noticed something extremely odd.

 

On the 2.4 GHz ch11, which is the one I have set, there is my network - the power I measured was around 30 dBm. On the very same channel, another network is present intermittently, the odd thing being that the ssid is composed by a bunch of \x00, I count 30 to be exact.

 

Now for the icing on the cake - LinSSID provides also the mac addresses of the networks it sees, here is what I found:

 

MAC address Description
14:EB:B6:D8:CD:2E My main 2.4 GHz network
82:EB:B6:D8:CD:28 The mistery `\x00` network
82:EB:B6:D8:CD:29 The guest network I activated

 

 

As you can see, the MAC address of the "mistery" network is the AX11000 guest network MAC address, diminished by one. And of course it is very similar to the main 2.4 GHz network.

Further details:

  • After I enabled the guest network, the problem seemed to be less prominent
  • I now have rebooted the Archer, guest network is disabled, and it seems to work reasonably well

 

Can anyone comment/suggest further steps? I am very willing to perform further analysis and investigation, as I want to get to the bottom of this. This kind of performances from this router are unacceptable, and sould be fixed.

 

Many thanks for your time.

 

Ciao,

V

 

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Re:AX11000 long ping and big jitter on 2.4G network
2022-10-24 06:38:50

@wilcomir 

 

How many Onemesh powerline extenders you are connecting to the AX11000 via Onemesh? How are they connected to the AX11000 also?

 

Be aware that Onemesh will emit a hidden network as stated by TP-Link here, I guess that's why you can see the "mistery" network.

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Re:AX11000 long ping and big jitter on 2.4G network
2022-10-24 06:54:26

  @Liverpool20 thanks for your insights.

 

The mistery network might very well be the mesh network, thanks for pointing that out.

 

I have two mesh devices, pretty far from each other and from the router. They are connected to the AX via powerline signal, they are not Wi-Fi range extenders, they effectively work as APs.

At the router I have a TL-PA8030P 2.0, connected via Ethernet cable, and the mesh devices are both TL-WPA8631P 3.0

 

Data rates to my one mesh devices is ~400 Mbps for one and 150 Mbps for the other.

 

I have now activated airtime fairness, hopefully it will help. I probably can help with this problem enabling a guest 2.4G network for IoT devices only, so that they interfere with each other but do not create issues for normal users.

 

cheers,

V

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