topic Re:Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW) in Wireless

Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

guardao — Wed, 27 May 2026 19:23:35 GMT

The Bluetooth is not installed with WIFI 7 BE211 320Mhz - DRIVERS 24.40.0 - Error code 43.

WiFi-24.40.0-Driver64-Win10-Win11.exe

Re:Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

JedG_Intel — Thu, 28 May 2026 02:04:48 GMT

Hi guardao,

I understand you're experiencing difficulties with Bluetooth functionality despite having the Wi-Fi driver version 24.40.0 installed. Error Code 43 typically indicates that Device Manager cannot start the hardware device, and this commonly occurs after Windows updates that include Wi-Fi or Bluetooth components.

To further troubleshoot the issue, please try to follow the outlined steps below.

1. Install all available Windows Updates.

2. Perform a Clean installation of Bluetooth drivers: How to Perform a Clean Installation of Bluetooth Drivers

Go to Device Manager.
Expand the Network Adapters category.
Right-click your Intel Bluetooth Adapter and choose to uninstall it.
Make sure to the option to Delete the driver software for this device is selected.
Repeat steps A through D until the the option to Delete the driver software for this device is greyed out.

3. Once the driver is uninstalled, proceed to install the latest driver available 24.40.0

4. Reboot the PC

5. Update system BIOS to the latest version, or reset BIOS to defaults

6. Perform a cold reboot

Laptop cold reboot with removable battery

Turn off the laptop, and unplug the power cord.
Disconnect any peripheral devices then remove the computer from any port replicator or docking station.
Remove the battery from the computer.
With the battery and power cord unplugged, press and hold the Power button for approximately 15 seconds.
After you drain the capacitors, re-insert the battery, then plug in the power cord. Leave peripheral devices disconnected.
Turn on the laptop.

Laptop cold reboot with a non-removable battery

Turn off the laptop.
Disconnect the AC adapter.
Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.
With the AC adapter unplugged, press and hold the power button for approximately 15 seconds.
Reconnect the AC adapter then turn on the computer.

Desktop cold reboot

Turn off the computer.
Unplug all the cables from the back of the computer.
Press and hold the power button for 20 seconds then release it to discharge remaining power. Clearing the CMOS battery is optional.
Reconnect all cables back again and turn on your computer.

You may also check this article for more information: Error Codes 10, 22, 28, 31, 43, or 45 in Device Manager for Bluetooth® or Wireless (Wi-Fi) Devices

If the issue persists, please share the additional information below for further investigation.

1. Have there been any recent system changes?

2. Where are you seeing the error code 43, is it on Device manager? Kindly share a screenshot of the error

3. Is this a pre-installed wireless card or self-integrated?

4. Was this working before with a previous driver version? If so, what is the driver version?

5. What is your exact system model and manufacturer?

6. Screenshot of Wireless adapter model on Device manager > Network adapters.

I look forward to your response.

Best regards

Jed G.

Intel Customer Support Technician

Re: Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

guardao — Thu, 28 May 2026 13:19:07 GMT

Hi, Jed G.

Thank you for your response.

I've tried all of possibly above solution and nothing works.

My system:

LENOVO ThinkPad E16 Gen 3 - Intel Core Ultra 7 255H - BIOS R30ET57W(1.57 )

Windows 11 Pro - 25H2 - SO 26200.8524

Wireless Card - Killer Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW) - DRIVER 24.40.0.4 - BLUTOOTH 6.0

Device Instance Id - PCI\VEN_8086&DEV_7740&SUBSYS_17751A56&REV_00\3&11583659&1&A3

This is a new OEM wireless card that I bought and install two months ago.

Previously I also bought a card BE201 version.

The BLUETOOTH was working with the BE201 card version, but as soon I changed to the new Killer Wi-Fi 7 BE1775i all I have is an CODE 43 response and the Intel drivers - BT-24.40.0-64UWD-Win10-Win11.exe - are not capable of fixing it.

Looking for a solution,

Best regards

Guardao

Re:Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

JedG_Intel — Fri, 29 May 2026 02:26:07 GMT

Hi guardao,

Thank you for sharing all this information. I really appreciate the effort and patience you’ve shown in working through the extensive troubleshooting steps I suggested.

I would just like to share that before you install/change the Intel® Wireless Adapter in a system, you must contact the system manufacturer to determine if the Intel® Wireless Adapters you plan to install is approved for use in your system and country. You are required to follow the manufacturer's post-approval requirements.

Since you have already performed the integration, it is also important to understand that it may not work due to hardware or software compatibility issues or dependencies.

You may also check our public article here: Regulatory Information Regarding Wireless Hardware Installation or Upgrade

To further investigate this, kindly provide the details below.

1. Where are you seeing the error code 43, is it on Device manager? Kindly share a screenshot of the error.

2. Share a screenshot of the Wireless adapter model on Device manager.

Device manager > Network adapters

I look forward to your response.

Best regards

Jed G.

Intel Customer Support Technician

Re: Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

guardao — Fri, 29 May 2026 10:48:40 GMT

Hi Jed G.

The problem relies with the BLUETOOTH installation.

The WIRELESS is working without any problems.

1 - BLUETOOTH code 43.

2 - WIRELESS adapter Killer BE1775i.

I hope this helps.

Thank you.

Guardao

Re: Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

JedG_Intel — Mon, 01 Jun 2026 00:39:16 GMT

Hi guardao,

Thank you for your cooperation in providing the requested information. I’ve also sent you an email to gather System Support Utility report. Please check your inbox at your earliest convenience.

Best regards

Jed G.

Intel Customer Support Technician

Re:Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

JedG_Intel — Thu, 04 Jun 2026 21:58:12 GMT

Hi guardao,

I am writing to provide you with an update.

Kindly follow the steps outlined below and let me know if this helps resolve the issue.

1. Uninstall the Bluetooth driver

a. Go to Device Manager.

b. Expand the Bluetooth category.

c. Right-click your Intel Bluetooth Adapter and choose to uninstall it.

d. Make sure to the option to Delete the driver software for this device is selected.

e. Repeat steps A through D until the option to Delete the driver software for this device is greyed out

2. After completing the steps above, please check for Windows updates to allow the system to automatically install the appropriate driver.

If the issue persists, please proceed with the additional steps below:

1. Obtain the Hardware ID of the Intel Bluetooth adapter:

a. Go to Device Manager.

b. Expand the Bluetooth category

c. Right-click your Intel Bluetooth Adapter and click properties

d. Select Details

e. Look for Hardware IDs

2. Visit the Microsoft Update Catalog: https://www.catalog.update.microsoft.com/Home.aspx

3. Search using the Hardware ID and manually install the correct driver that matches your operating system version.

In case the issue is still observed, I recommend reaching out to the system manufacturer to verify the compatibility of the Wi-Fi card with them.

Additionally, could you please confirm if the issue you’re experiencing is only related to Bluetooth?

if you have any questions, please let me know.

Best regards

Jed G.

Intel Customer Support Technician

Re: Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

guardao — Fri, 05 Jun 2026 01:44:53 GMT

Hello Jed,

Sorry, but I've tried all the suggested solutions without success.

I keep getting error code 43, and Bluetooth is the cause.

So my problem is only with BLUETOOTH.

In addition, there's another problem I can't solve:

The 6 GHz band it only indicates a maximum speed of 61 Mbps.

With the 320 Mbps option selected on the router, only reaches 160 MHz (80 + 80).

This might be related to some installation problem or with my internet provider.

If you have any suggestions to overcome this, I would appreciate it.

Thank you in advance for your attention.

I look forward to further updates.

Guardao

PS: Is it possible that the card is only defective in the Bluetooth area? If so, how can I test this?

Re:Killer(R) Wi-Fi 7 BE1775i 320MHz Wireless Network Adapter (BE211NGW)

JedG_Intel — Fri, 05 Jun 2026 02:29:48 GMT

Hi guardao,

Thank you for your feedback. Based on what you’ve shared, it looks like you’re encountering issues with both Bluetooth (error code 43) and Wi‑Fi, with the connection speed only reaching up to 61 Mbps.

I'll further investigate this matter with my team and I'll give you another update as soon as it's available.

Best regards

Jed G.

Intel Customer Support Technician