Laptop Lenovo B590, released several years ago, remains a reliable companion for many users, but its age can create certain difficulties with modern wireless standards. Owners often encounter a situation where, after reinstalling the operating system or updating drivers, the network icon disappears, making internet connection impossible without a cable. Understanding the hardware features of this model is key to successfully resolving this issue.
In this article, we will examine in detail all possible activation methods. wireless adapter on your device. We'll cover both software configuration methods through the operating system and physical switches that often go unnoticed. A smart approach will help avoid unnecessary trips to the service center.
Particular attention should be paid to driver compatibility, as incorrect software is most often the cause of module inoperability. Windows 10 or Windows 11 They may automatically install generic drivers that don't support all the features of a specific chipset. Therefore, manually checking and installing genuine components from the manufacturer is a mandatory step for stable operation.
Finding the physical switch and key combinations
The first step in diagnostics should always be checking the physical condition of the communication module. On the laptop case Lenovo B590 There may be a dedicated mechanical switch that completely shuts off power to the wireless module. Its location varies depending on the specific case model, but it's most often located on the front edge or side.
If there is no external slider, you will need to use the keyboard's function keys. To activate Wi-Fi on B590 series models, the following combination is usually reserved: Fn + F5Pressing this combination brings up the wireless device management menu, where you can toggle the status of the modules. In some cases, if the keyboard drivers are not installed, only one key may work. F5 without clamping Fn.
It's important to note that status indication is often duplicated by an LED on the housing. If the indicator is green or blue, the module is active. A blinking light may indicate standby mode or a connection attempt, while no light indicates a complete power outage or a malfunction.
There's a BIOS issue that can block keyboard shortcuts. If none of these methods work, the wireless network management feature may be disabled at the Basic Input/Output System (BIS) level. Checking this setting requires entering the BIOS menu when booting the computer.
Checking the adapter status in Device Manager
If physical methods fail, you need to turn to software diagnostics. Windows Device Manager is the primary tool for determining the status. hardwareTo open it, right-click on the "My Computer" icon and select "Manage," then go to the appropriate section.
In the list of equipment, we're interested in the "Network adapters" section. Expand it and find the device whose name contains the words Wireless, Wi-Fi, 802.11 or names of chip manufacturers such as Atheros, Realtek, BroadcomIf the device is displayed with a yellow exclamation mark, this indicates a driver conflict or an operating error.
- 🔍 If the device is displayed as "Unknown device", the system lacks a driver to identify it.
- 🚫 If the adapter icon has a red cross, the device is disabled by software or has a critical error.
- ✅ If the device displays normally, but there is no network, the problem may be in the service or router settings.
Double-clicking the adapter will open its properties window, where the "General" tab will display an error code, if any. Codes 10 or 43 often indicate that the device cannot start, requiring a driver reinstallation or power supply check. Code 28 indicates missing drivers.
⚠️ Attention: If there is no "Network adapters" section in the device manager or the wireless module is not displayed even in the "Other devices" list, the contact inside the case may have come loose or the module may be physically damaged.
Installing and updating wireless network drivers
The most common cause of problems with Lenovo B590 The lack of a specialized driver is a drawback. Windows operating systems often install standard Microsoft drivers, which provide basic functionality but don't allow signal strength control or enabling the module via hotkeys.
To find the correct software, you need to know the exact model of your wireless adapter. You can do this in Device Manager by going to the "Details" tab and selecting "Hardware IDs." Once you have this information, you can find the latest driver on the official Lenovo support website or the chip manufacturer's website.
The installation process requires administrator rights and a system reboot. After installation, it is recommended to check whether Wi-Fi can be controlled via the menu. Start → Settings → Network & InternetIf the icon still doesn't appear after installing the driver, try removing the device from the Device Manager by checking the "Delete driver software" box and scanning for hardware configuration changes.
It is worth noting that for Windows 10 And 11 Sometimes drivers from are suitable Windows 8.1 In compatibility mode. To do this, right-click the .exe file when installing it, select Properties, and then the Compatibility tab.
Setting up a wireless network service in Windows
Even with working drivers, a wireless network may not work due to stopped system services. In Windows, the service responsible for detecting and connecting to networks WLAN AutoConfigIf it is disabled, the laptop will simply not search for available access points.
To check, press the combination Win + R, enter the command services.msc and press Enter. In the list that opens, find the service WLAN AutoConfig (or Zero Configuration (for older systems). Double-clicking will open the properties, where the "Startup type" field should be set to "Automatically".
| Parameter | Recommended value | Description of influence |
|---|---|---|
| Launch type | Automatically | The service starts with the OS |
| State | In progress | The service is active right now. |
| Dependencies | NDIS Usermode I/O Protocol | Basic Input/Output Protocol |
If the "Start" button is grayed out or returns an error, check the service's dependencies. Sometimes the blocking issue can be caused by antivirus software or group policies, especially on corporate laptops. In a home environment, simply starting the service and applying the changes is sufficient.
☑️ WLAN Service Diagnostics
Solving energy saving problems
The Windows power management system sometimes aggressively shuts down devices to conserve battery life, which can lead to unstable Wi-Fi performance on B590 series laptops. This manifests itself as intermittent connection drops or an inability to turn on the Wi-Fi module after waking from sleep mode.
To prevent the system from turning off the adapter, return to Device Manager, open the properties of your wireless adapter, and go to the "Power Management" tab. Uncheck "Allow the computer to turn off this device to save power."
Additionally, you can customize the power plan. Go to Control Panel → Power Options → Change plan settings → Change advanced power settingsIn the list, find "Wireless adapter settings" and set the mode to maximum performance both on battery and when plugged in.
⚠️ Note: Disabling power saving may slightly increase battery consumption, but it ensures a stable connection, which is critical when downloading large files or making video calls.
Resetting network settings and command line
If software glitches accumulate, a simple reboot may not be enough. Resetting network settings via the command line allows you to clear the DNS cache, reset the TCP/IP stack, and update the IP address configuration. This is a universal solution for many network issues.
Run the command prompt as administrator. To do this, find cmd In the search box, right-click and select "Run as 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 the commands, be sure to restart your computer. This will reset the network protocols to factory settings, removing any conflicting registry entries. This often helps when the driver is installed but there's no connection.
What to do if resetting doesn't help?
If resetting the TCP/IP stack doesn't work, try deleting all saved networks. Go to Settings -> Network & Internet -> Wi-Fi -> Manage known networks and tap "Forget" for all profiles. Then reconnect, entering the password.
BIOS diagnostics and hardware faults
In rare cases, the Wi-Fi module may be disabled at the BIOS level. To check this, enter the BIOS during boot by pressing the [Enter] key. F2 or Fn+F2. Find the section Configuration or Advanced and look for the item Wireless LAN or Onboard WLANHe must be in position. Enabled.
If the module is enabled in the BIOS, the drivers are installed, and the services are running, but the adapter is not detected, there is a high probability of hardware failure. In laptops Lenovo B590 The wireless module is often a Mini PCI-E card that fits into a slot under the bottom cover.
- 🔌 Check the antennas for tightness: the thin wires (black and white) should be securely snapped onto the module connectors.
- 💻 Try removing the module and wiping the contacts with an eraser, then insert it back until it clicks.
- 🔄 If possible, replace the module with a known good one (for example, from another laptop with the same interface).
The cost of replacing a Wi-Fi module is usually low, and this often solves the problem more radically than searching for software conflicts. Modern modules that support the standard AC may work faster than standard ones, but make sure they are compatible before purchasing.
Frequently Asked Questions (FAQ)
Why did Wi-Fi disappear on my Lenovo B590 after reinstalling Windows?
Most likely, the new operating system didn't find a driver for your specific wireless adapter model in its database. You'll need to download the driver from another device (via cable or phone) and install it manually.
Where can I find the Lenovo B590 Wi-Fi driver if there's no official website?
Official support may be limited, but drivers can be found on driver aggregator websites or by identifying the hardware ID in Device Manager. Drivers for the Lenovo G590 or other Intel/Atheros chipset models from the same period are often suitable.
Is it possible to use a USB Wi-Fi adapter if the built-in one is burned out?
Yes, this is a great solution. Any external USB adapter that supports your Wi-Fi standard (e.g., 802.11n or ac) will work immediately after installing the drivers, bypassing the faulty built-in module.
How do I find out which Wi-Fi module is installed in my laptop?
Open Device Manager, find your network adapter, right-click -> Properties -> Details -> Hardware IDs. The first lines of code will indicate the manufacturer (for example, VEN_168C for Atheros).