Intel AX211 Slow and Unstable

[SRIS]

Hi,

Few weeks back I got Samsung Galaxy Book 4 Pro 16 inch variant with following config:

Intel(R) Core(TM) Ultra 5 125H, 16 GB Ram, windows 11

Intel(R) Wi-Fi 6E AX211 160MHz with driver version 23.40.0.4 and all other windows & bios updates has been installed.

I have a 200 Mbps connection and my router config is:

Device: Huawei HG8145V EchoLife HG8145V GPON Terminal (CLASS B+)
Hardware Version: 13A9.A
Software Version: V3R017C10S200

Recently when I was playing a game, I experienced some lag which then made me do a speed test so that I can understand where's the issue. To my surprise, its only this laptop which is experiencing slow speed and high jitter.  I did speed test at same place from my s22 Ultra phone and also 2013 iMac; both gave satisfactory results. If I remember correctly, this was not the case when I did fresh boot on day 1. 

Wifi Details:

SSID: AIR 5GHZ
Protocol: Wi-Fi 5 (802.11ac)
Security type: WPA2-Personal
Network band: 5 GHz
Network channel: 36
Link speed (Receive/Transmit): 520/520 (Mbps)

Here are speed test photos on my laptop and mobile (s22 ultra)...

My issue is similar to something what discussed here :

https://community.intel.com/t5/Wireless/Intel-6E-ax211-slow-upload-speed/m-p/1519395#M49588

https://community.intel.com/t5/Wireless/Intel-R-6E-AX211-160MHz-Very-slow-connection/td-p/1415072

I have uninstalled/installed and played with driver settings several times but that did not fix the problem.

[Mike_Intel]

Hello SRIS,

Thank you for posting in Intel community Forum.

For us to further check this issue, please help generate the SSU logs of your system.

Please download the utility here:

https://www.intel.com/content/www/us/en/download/18377/intel-system-support-utility-for-windows.html

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello SRIS,

I hope this message finds you well. 

Were you able to check the previous post?

Please let us know if you still need assistance.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello SRIS,

I hope you are having a good day.

I am sending another follow up on the information that I requested. 

Since we have not heard back from you, I need to close this inquiry. 

If you need further assistance, please post a new question as this thread will no longer be monitored. 

Thank you and have a great day. 

Best regards,

Michael L.

Intel Customer Support Technician