Slow Wi-Fi Speeds on HP Victus 15-fb3xxx despite driver update for Realtek RTL8852BE-VT

[ardabtank]

Hello HP Community,

I am experiencing significantly reduced Wi-Fi speeds on my HP Victus 15 (model 15-fb3xxx) laptop, even though the latest driver updates for the Wi-Fi adapter have been installed. Here are the full details:

System and network details:

• System model: HP Victus 15-fb3xxx

• Wireless adapter: Realtek RTL8852BE-VT Wireless LAN WiFi 6 PCI-E NIC (Hardware ID: PCI\VEN_10EC&DEV_B520&SUBSYS_88E9103C&REV_00)

• ISP connection: I have a 1000 Mbps (1 Gbps) internet plan from my service provider.

• Other device status: Another computer in the same home network achieves expected high speeds (near the full ISP plan) without issue.

• Issue description:

  • On this laptop via Wi-Fi, I only get around ~40 Mbps download speed, which is far below what the hardware (WiFi 6) and my ISP plan should allow.

  • I have verified the adapter is correctly recognized, driver appears up to date, yet Wi-Fi speed remains low.

Troubleshooting I have already done:

• Confirmed the correct adapter model.

• Updated driver via Device Manager and from appropriate sources.

• Checked and applied suggested settings (5 GHz band, power management settings, preferred band).

• Made sure no background downloads or other devices are hogging the network at the time of testing.

• Tested speed on another device in the same network—works fine there.

Request for help:
Could someone please assist with the following:

• Are there specific driver versions, BIOS updates, or HP-recommended settings for the Realtek RTL8852BE-VT on the Victus 15-fb3xxx that reliably allow WiFi to reach expected speeds (hundreds of Mbps range) rather than ~40 Mbps?

• Are there known design limitations or firmware patches for this adapter specifically on HP machines?

• What further diagnostics should I run (e.g., check router settings, channel width, card-firmware mismatch) to isolate whether this is a router/adapter/firmware issue rather than ISP or network load?

Thank you in advance for your time and support.

[Kuroi_Kenshi]

Hi @ardabtank,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

I understand your HP Victus 15 laptop is receiving very slow Wi-Fi speeds (~40 Mbps) despite having a Wi-Fi 6 adapter and a 1 Gbps internet connection. Let’s go through a few steps to check what could be causing this.

a. Check Wi-Fi Band and Channel Width

Ensure your laptop is connected to the 5 GHz band (not 2.4 GHz).

Go to Device Manager > Network adapters > Realtek RTL8852BE-VT > Properties > Advanced tab.

Set Preferred Band = 5 GHz

Set Channel Width for 5GHz = 80 MHz (or Auto)

Set Wireless Mode = 802.11ax (Wi-Fi 6)

b. Disable Power Saving for Wi-Fi Adapter

Still in the adapter properties, go to the Power Management tab.

Uncheck “Allow the computer to turn off this device to save power.”

Then go to Control Panel > Power Options > Change plan settings > Advanced settings.

Under Wireless Adapter Settings > Power Saving Mode, set both On battery and Plugged in = Maximum Performance.

c. Reset Network & TCP/IP Stack

Open Command Prompt as Administrator and run these one by one:

netsh int ip reset   

netsh winsock reset   

ipconfig /flushdns

Restart your laptop and reconnect to Wi-Fi.

d. Update BIOS and Chipset Drivers

Open HP Support Assistant or visit support.hp.com.

Enter your model Victus 15-fb3xxx and download/install:

Latest BIOS update

AMD/Intel chipset driver

Realtek Wi-Fi driver (if available from HP, not just Windows Update)

e. Router Settings to Check

Ensure your router supports Wi-Fi 5/6 (802.11ac/ax) and is not limited to 20 MHz channel width.

Enable 80 MHz or 160 MHz channel width for the 5 GHz band.

Enable WPA2/WPA3 security (avoid WPA/WEP).

Disable QoS or bandwidth-limiting settings if enabled.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨

Take care and have an amazing day ahead! 🚀

Best regards,

[ardabtank]

Hi, I already tried all the things you mentioned but problem did not solved. Additionaly, we tried a lot of solutions with the live-chat HP Support guy for 1.5 hours but nothing has changed. I do not know what to do. I need help.

[ahmed-mohsen]

Have you managed to fix your issue, brother? I’m facing the exact same problem with the same laptop model, and I’ve tried almost every possible solution but nothing seems to work. I can’t figure out what’s causing it.

[ardabtank]

Unfortunetly brother, I can't figure out it too.

[ahmed-mohsen]

Do you think it’s a hardware problem, or should I just throw the laptop in the trash and buy a new one

[ahmed-mohsen]

you try rinstall windows ?