Laptops of the series Lenovo B570e, released in the early 2010s, are still in service thanks to their reliability, but often encounter problems when operating on modern high-speed networks. The main problem for owners of this model is not so much the lack of the module itself, but rather incorrect software operation or accidental hardware blocking. Turn on Wi-Fi on a Lenovo B570e, it is not enough to simply press one button; a comprehensive approach to system diagnostics is required.
Owners often encounter a situation where the wireless indicator is off and the list of available networks is empty. This could be caused by a BIOS error, missing drivers for an outdated chipset, or a physically disconnected module. Understanding the architecture of this device will help you quickly restore internet access without calling a service center.
Next, we'll look at all the possible reasons for the lack of a signal, from physical switches to fine-tuning the operating system. WindowsFollow the instructions sequentially to eliminate each potential cause of failure.
Hardware switches and key combinations
The first step in diagnostics should always be checking the physical connection. On the laptop case Lenovo B570e There may be a mechanical switch that completely de-energizes the wireless module. If it's in the "Off" position, no software settings will make the adapter work.
Carefully inspect the sides of the device. On some models, this switch is located on the front panel or on the side, closer to the touchpad. Its position should correspond to the enabled wireless interface mode.
If there is no mechanical lever, control is transferred to software keys. On laptop keyboards Lenovo a function key is usually responsible for this F7 or a combination Fn + F5When you press it, a menu for managing wireless devices should appear on the screen, where you can activate Wi-Fi And Bluetooth separately.
Make sure you don't hold down the keys for too long, as this may cause other function keys to change their behavior. A short press Fn + F5 should bring up the connection manager pop-up window.
⚠️ Note: On some B570e series models, the key combination only works with the proprietary driver installed. Lenovo Hotkey Features IntegrationWithout this software, pressing buttons may not provide visual feedback.
Checking the adapter status in the operating system
After checking the keyboard, you need to make sure the operating system recognizes the network adapter. In Windows 10 or 11, this can be done through the Network Connections control panel. Right-click the network icon in the system tray and select "Network and Internet settings."
In the window that opens, find the "Configure adapter settings" section. This displays all network interfaces installed on the computer. We're interested in the device with a name containing the words Wireless, Wi-Fi or 802.11.
If the adapter icon is gray and labeled "Disabled," right-click it and select "Enable." The system will attempt to activate the device, which may take a few seconds.
If the adapter is displayed but has a yellow exclamation mark, the problem lies deeper—in the drivers or a resource conflict. A more detailed diagnosis via Device Manager will be required.
Diagnostics via Device Manager
Device Manager is the primary tool for troubleshooting hardware issues. To open it, right-click the Start button and select Device Manager from the menu. Find the "Network Adapters" section in the list and expand it.
If the wireless adapter Lenovo or Atheros/Realtek If the device is missing from the list or marked with a question mark, this indicates that the system cannot identify the device. Often, an "Unknown device" with a yellow triangle appears in the "Other devices" list.
Double-click the problematic device to open its properties. Go to the "Details" tab and select "Hardware IDs" from the drop-down list. You can use the copied IDs to search for the exact driver model online.
Sometimes a simple configuration refresh can help. In the Device Manager menu, select "Action" → "Scan for hardware configuration." The system will attempt to rescan all connected components.
What to do if the device is hidden?
In the Device Manager menu, select "View" → "Show hidden devices." If the adapter appears translucent, it may have been removed from the system and will require a complete driver reinstallation, including a registry cleanup.
Installing and updating drivers
The most common reason for Wi-Fi not working on Lenovo B570e — missing or incorrectly functioning drivers. Since the model belongs to an older generation, automatic installation via Windows Update may fail or install a universal but unstable driver.
We recommend downloading the original software from the official Lenovo support website or using the disc that came with your laptop. You'll need drivers for the chipset and specifically for the wireless module (Wireless LAN).
The installation process should proceed in the following order: first, remove the old driver through the program control panel, then reboot, and only after that install the new package.
Please pay attention to the bit depth of the system: for Windows 7 or Windows 10 Versions may differ. An incorrectly selected driver (for example, for a 32-bit system on a 64-bit system) simply won't install.
☑️ Checking driver installation
⚠️ Note: Manufacturers' website interfaces may change. If you can't find a driver for the B570e model, try searching by the exact hardware ID (VEN_ and DEV_ codes) found in Device Manager.
Setting up BIOS and UEFI
If software methods don't help, the wireless module may be disabled at the BIOS level. This often happens after resetting the motherboard or updating the firmware. To enter the BIOS, press the [key] when booting the laptop. F2 or Fn + F2.
In the BIOS menu you need to go to the tab Configuration or AdvancedFind the parameter that contains the word Wireless, WLAN or Onboard DeviceIts value should be set to Enabled.
It's also worth checking your power saving settings. Some BIOS versions have an option Wireless Auto Disable, which can block the module when the battery is low, even if the laptop is connected to the network.
After changing the settings, be sure to save them by selecting Exit Saving Changes (usually a key F10). The laptop will restart and the changes will take effect.
| BIOS Parameter | Recommended Value | Location | Description |
| :--- | :--- | :--- |
| Wireless LAN | Enabled | Configuration | Turns the Wi-Fi module on or off |
| Onboard WLAN | Enabled | Advanced | Onboard Wireless Device Management |
| USB BIOS Selective | Disabled | USB/Power | May affect power supply to USB adapters |
Windows Services and Power Management
In the Windows operating system, a special service is responsible for wireless networking. If it is stopped, you won't be able to turn on Wi-Fi using any buttons. Click Win + R, enter services.msc and press Enter.
In the list of services, find "WLAN AutoConfig Service." Make sure the startup type is set to "Automatic" and the service is running. If it is stopped, click "Start."
Another common issue is Windows' aggressive power saving policy. The system may disable the adapter to save power, after which it stops responding to power-on commands.
To fix this, return to Device Manager, open the properties of your Wi-Fi adapter, and go to the "Power Management" tab. Uncheck "Allow the computer to turn off this device to save power."
- 🔋 Disabling power saving prolongs connection stability, but may slightly increase battery consumption.
- 🔄 Restarting the WLAN AutoConfig service often solves the problem of endlessly searching for networks.
- 🛡️ Antivirus software may be blocking the service; check your firewall settings.
Resetting network settings and command line
If all the previous steps fail, you should try resetting the Windows network stack. This will delete all saved Wi-Fi profiles and return the network settings to factory defaults.
Launch the Command Prompt as administrator. To do this, right-click "Start" and select "Windows PowerShell (Administrator)" or "Command Prompt (Administrator)".
Enter the following commands one by one, pressing Enter after each:
netsh winsock resetnetsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns
After running all commands, be sure to restart your computer. This method is especially effective if the problem occurred after updating your operating system or installing a new antivirus.
Is it possible to reset the settings through the interface?
Windows 10 and 11 have a built-in "Network Reset" button under Settings → Network Status. It performs the same action but requires a reboot.
Frequently Asked Questions (FAQ)
Why isn't 5GHz Wi-Fi working on my Lenovo B570e?
The modules originally installed in this model (usually older Atheros or Realtek versions) often only support the 2.4 GHz band. To operate in the 5 GHz band, you'll need to replace the internal module with a more modern one compatible with the Mini PCIe or Half Mini PCIe interface.
How can I check if the Wi-Fi module itself is working properly?
The most reliable method is to connect an external USB Wi-Fi adapter. If it works, the OS software is fine, and the problem lies with the internal module or its antennas. You can also try booting from a Linux LiveCD to rule out the possibility of Windows drivers interfering.
Can I use a laptop without Wi-Fi antennas?
Technically, the module can be detected by the system, but the range will be only a few centimeters, making it impossible to use. The antennas (the black and white wires leading to the screen) are critical for signal reception.
Which driver is better: from the Lenovo website or from the Update Center?
For the B570e model, it's best to use the original driver from Lenovo's website, as it's guaranteed to be compatible with the specific motherboard revision. Drivers from the Update Center may be too new or, conversely, generic and unstable.