How to enable Wi-Fi on a Lenovo B570E laptop: all the methods + troubleshooting

Laptop Lenovo B570E — a time-tested model released in 2011, but still widely used in offices, schools, and homes. However, owners often encounter a problem: after reinstalling Windows, updating drivers, or even simply rebooting the device, the connection to wireless networkThe cause isn't a faulty adapter, but rather a specific feature of the Wi-Fi module control on this model.

Unlike modern laptops, where the wireless network turns on automatically, B570E requires manual activation via function keys, BIOS or device Manager. Moreover, due to the outdated version of the Wi-Fi adapter (Broadcom 4313 or Realtek RTL8188CE) conflicts may arise with new versions of Windows 10/11. In this article, we'll cover all the working methods for enabling Wi-Fi, as well as resolve common errors such as "The network adapter does not have valid IP configuration settings." or the absence of the network icon in the tray.

Before you proceed with the instructions, please check two key points:

• 🔋 The laptop is charged or connected to a power source. When the battery level is low, Windows may disable power-hungry modules, including Wi-Fi.
• 🔄 Restart your router - sometimes the problem lies not with your laptop, but with the router (especially if other devices also can't connect).

1. Turn on Wi-Fi via the function key (the fastest way)

On Lenovo B570E A key combination is used to activate the wireless modules Fn + F5This is a standard solution for most models. Lenovo of that period, but there are nuances:

• 🔑 Click Fn + F5 simultaneously and hold for 2-3 seconds. A window should appear on the screen. «Lenovo Energy Management»** with a list of wireless adapters.
• 📡 Find the item in the list «Wireless Network (Wi-Fi)» and make sure there is a check mark next to it or the status is "On" If not, click on it with your mouse.
• 🔄 If the window doesn't appear, it means the utility isn't installed. Lenovo Energy Management (you can download it at official website).

Important: on some modifications B570E (for example, with a processor Intel Core i3-2310M) the combination may be different - try it Fn + F2 or Fn + F7. Also check if the function is disabled. hot keys in BIOS (more on that below).

Make sure the Fn key is unlocked (the LED on it is not lit)|Try pressing Fn + Esc to unlock it|Check if the Lenovo Energy Management utility is installed|Update your keyboard drivers through Device Manager

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⚠️ Attention: If after pressing Fn + F5 nothing happens, but the Wi-Fi indicator on the laptop case is blinking, the problem may be in hardware switchOn . B570E It is located on the front panel on the right - turn it to the "ON" position.

2. Activating Wi-Fi via BIOS (if the keys don't work)

If the function keys don't work, the wireless adapter may be disabled at the BIOS level. This is typical after a factory reset or firmware update. To enable it:

1. Turn off your laptop and turn it on again immediately pressing F2 (or Del, If F2 does not work) to enter BIOS.
2. Go to the section Advanced → Wireless (or Network Configuration depending on the BIOS version).
3. Find the parameter «Wireless LAN»** and set the value Enabled.
4. Save changes (F10) and restart the laptop.

If there is no item in BIOS Wireless LAN, this could mean:

• 🔧 Your BIOS version is out of date (relevant for B570E with firmware up to 2013).
• 🔌 The adapter is physically disconnected (check the antenna connections inside the case).
• 🖥️ The laptop does not recognize the Wi-Fi module due to the lack of drivers (solution in the next section).

⚠️ Attention: If after changing the BIOS settings the laptop does not turn on or displays an error 0x0000007B, reset the settings to factory settings by removing the CMOS battery for 10 seconds (located under the back cover).

3. Checking and installing drivers for the Wi-Fi adapter

One of the most common scenarios is the absence of the Wi-Fi icon in the tray due to uninstalled or conflicting driversOn . Lenovo B570E there may be adapters from Broadcom, Realtek or Atheros, and each requires its own drivers.

To check the current status:

1. Click Win + X and select "Device Manager"**.
2. Expand the section Network Adapters**.
3. If the list contains devices with an exclamation mark (for example, Broadcom 802.11n Network Adapter), right-click on it and select "Update Driver"**.

If the automatic search doesn't help, download the driver manually:

• 🌐 For Broadcom 4313: Driver from the official Lenovo website (select model B570E and Windows version).
• 🔄 For Realtek RTL8188CE: use the universal driver with Realtek website (version 2023.05.08.02 or later).
• 🔧 If the adapter is not detected at all, try installing the driver manually via Install from the specified location → Do not show compatible devices → select Broadcom 4313GN from the list.

What should I do if Windows says "Drivers not found"?

If the system does not find the driver automatically, download it to another PC and transfer it to the laptop via a flash drive. Lenovo B570E the driver package is suitable for Lenovo B570 (without the letter "E") — they are compatible. Also, check your Windows bitness: for 32-bit, download drivers marked "x86," for 64-bit, download drivers marked "x64."

Critical feature: on Lenovo B570E The standard Broadcom driver may not work with Windows 10/11 due to a conflict with the WPA3 security protocol. The solution is to roll back to driver version 6.30.223.256 (2015) or disable WPA3 in the router settings.

4. Enable Wi-Fi via Windows settings

If the adapter is enabled but the network still isn't working, check your operating system settings. The path may vary depending on your Windows version:

For Windows 7:

1. Click on the network icon in the tray (bottom right) → Network Control Center**.
2. Select "Change adapter settings"**.
3. Find Wireless Network Connection, right click and press "Turn on".

For Windows 10/11:

1. Click Win + I → Network and Internet**.
2. Go to «Wi-Fi»** and move the slider to the position "On".
3. If there is no slider, click Change adapter settings and turn it on Wireless Network manually.

If there is no wireless connection in the list of adapters, it means that:

• 🔌 The adapter is disabled in BIOS (see section 2).
• 🔧 The driver is not installed or is damaged (see section 3).
• 💻 The laptop does not recognize the Wi-Fi module (possibly physical damage).

5. Diagnosing connection problems

If Wi-Fi is on but the internet is not working, run diagnostics:

1. Right-click on the network icon → "Troubleshooting"**.
2. Wait for the check to complete. If the system returns an error "The network adapter does not have valid IP configuration settings"**, run it in the command line (Win + R → cmd):

netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew

Afterwards, restart your laptop.

Other common errors and their solutions:

⚠️ Attention: If after all the manipulations Wi-Fi still does not work, and in Device Manager The adapter is displayed as Unknown Device, this may indicate microcircuit damage (a common problem for B570E (After 5+ years of use). In this case, only replacing the Wi-Fi module will help (suitable models: Broadcom BCM94313HMGB or Intel Centrino Wireless-N 1000).

6. Alternative ways to connect to the Internet

If you can't turn on Wi-Fi, but you urgently need internet, try alternative methods:

• 📶 4G USB modem: Connect the USB modem from Megaphone, Beeline or MTS — Lenovo B570E Supports most devices without additional drivers.
• 🔌 Ethernet cable: Connect your laptop to the router via the port RJ-45 (network cable connector on the left panel).
• 📱 Smartphone as a hotspot: Turn it on on your phone "Modem mode"** and connect to its Wi-Fi network (the password is usually displayed on the smartphone screen).

Connection via cable may require some configuration. IP addresses manually:

1. Go to Control Panel → Network and Sharing Center → Change adapter settings.
2. Right click on «Ethernet» → "Properties".
3. Select Internet Protocol Version 4 (TCP/IPv4) and enter:

IP address: 192.168.1.100
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.1
DNS: 8.8.8.8 (or 1.1.1.1)

7. Frequently asked questions about Wi-Fi on the Lenovo B570E

Why did Wi-Fi stop working after updating Windows 10?

Windows 10 automatically installs generic drivers, which are not always compatible with older adapters. Broadcom V B570E. Solution:

1. Roll back the driver via device Manager (right click on the adapter → "Properties" → Rollback).
2. If the Roll Back button is inactive, download the driver version 6.30.223.256 from the website Lenovo.

How do I know which Wi-Fi adapter is in my B570E?

There are three ways:

1. Look at the sticker on the back of the laptop - if there is an inscription Broadcom Wireless or Realtek RTL8188CE, this is your adapter.
2. IN Device Manager open Network Adapters** — the name will contain the model.
3. Use the command in cmd:

   wmic nic get name, manufacturer

Is it possible to replace the Wi-Fi module with a more modern one?

Yes, but with restrictions:

• 🔧 Lenovo B570E supports modules of the format Mini PCIe Half-Size (For example, Intel 7260 or Broadcom BCM94360).
• ⚠️ Modules with interface M.2 (NGFF) won't fit - B570E another connector.
• 🔄 After replacement, you may need to turn it off Secure Boot in BIOS.

My laptop sees networks but won't connect—what should I do?

The problem may be in the router or laptop settings:

1. Check that the router is in the enabled mode. 802.11n (and not only 802.11ac - it is not supported by old adapters).
2. Disable it in your router WPA3 and leave only WPA2-PSK.
3. Turn it off on your laptop automatic detection of parameters in the Wi-Fi network properties (check the box "Connect even if the network doesn't broadcast its name"**).

Where can I download official drivers for the B570E?

Official drivers can be found:

• 🌐 On Lenovo support website (enter model) B570E in search).
• 💾 On driver pack (select section Lenovo → IdeaPad B Series).
• 🔧 In the driver archive for Lenovo B570 (they are compatible with B570E).

Avoid third-party websites with "universal drivers" - they often contain viruses.