Degraded Wifi speeds on 5Ghz Band

[niha2000]

I've got a HP Pavillion Gaming Laptop ( 552W1PA#ACJ) running Windows 11 with a Reaktek RTL8852AE WiFi 6 802.11ax Adapter with the latest updated drivers (Driver Version- 6001.10.351.0 by Realtek). 

Recently my device started getting extremely poor speeds on the 5Ghz band. I'm getting an average network speed of around 40Mbps (where earlier it used to reach above 125) even when i use my laptop just beside my router with signal strength above 400Mbps on 5Ghz.  while the 2.4Ghz band works just fine with expected network speeds.

I've got a 125 Mbps FTTH plan with pretty consistent speed. I conducted the same test on multiple devices on both band (2.4 and 5Ghz)  and the network speeds are well above 120Mbps. Therefore I've concluded there's no isssue with my router (WIFI 5). 

My laptop was working perfectly fine a few weeks back with good  speeds and ping.  But recently the network speed plummited. I've tried updating the driver from official HP website and App, and even rolled back to the driver which worked fine but with no improvement. I'm using the 2.4 Ghz band but the 5Ghz used to provide me better bandwidth and ping.

[Paul_Tikkanen]

Hi:

6001.10.351.0 is not the latest version of the driver.

The only suggestion I can offer would be to install the latest driver HP has for that model Wi-Fi adapter:

6001.10.354.0     04/17/2023

https://ftp.hp.com/pub/softpaq/sp148001-148500/sp148266.exe 

[niha2000]

Thank you for your effort, but still no luck even after updating the driver to:

6001.10.354.0     04/17/2023         

Hoping for the best!