Slow Wifi Speed oin Galaxy Book 4 Pro

[typhoon007]

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.

[SgtStubby]

Does the laptop have a cat 5 connection?
It coukd be a missing or disconnected antenna on the network card. I had service done on my laptop and one of the cables was not making good contact. I had poor speeds also.

[Helenna]

Hi, sorry to hear this issue on your Galaxy Book4 Pro. Please check that you may need to update your network drivers, or there are too many devices connected to the network and they're streaming or using lots of data. Check for Wi-Fi antenna if it is disconnected.

If necessary, install a repeater or range extender to boost the wireless signal of your router.

If nothing works, please get the laptop examined by the Samsung authorized service technician. So that, they can determine the root cause of the issue and fix it. 

Please visit the below link to know the nearest Samsung Service center.

https://www.samsung.com/ca/support/service-center/

Thank you.