Laptops of the series IdeaPad S145 While wireless networks remain popular due to their affordability and reliability, users often encounter difficulties when initially setting up a wireless connection. The problem can range from a disabled software button to a lack of necessary drivers in the system. WindowsUnderstanding the physical architecture of a device is the first step to successfully solving a problem.
Unlike many modern Ultrabooks, this model has a unique layout of controls, which often confuses beginners. Sometimes the network indicator simply doesn't appear in the system tray, creating the false impression of a hardware failure. In fact, in most cases, simply following the correct sequence of steps is all that's required to activate it. Wi-Fi module.
This guide will help you thoroughly analyze all possible reasons for a lack of internet and troubleshoot them yourself. We'll cover both software solutions through the operating system and physical switches on the device's case. This will save you time and avoid unnecessary trips to a service center.
Finding the physical switch and function keys
The first thing the owner needs to do is Lenovo IdeaPad S145, is to carefully inspect the sides of the case. In some revisions of this model, engineers retained the classic mechanical switch for wireless modules. It is usually located on the front or side edge and has a distinctive antenna icon. If you find such a slider, make sure it is in the "ON" position. On or Enabled.
A more common control option is to use the function keys on the keyboard. On Lenovo laptops, this function is most often performed by a key combination. FnYou need to find a button with an image of an airplane or antenna on row F1-F12. On the model S145 This is often a key F7 or F8, but the configuration may differ depending on the delivery region.
⚠️ Note: On some models, the keyboard operates in multimedia mode by default. This means that you may need to simultaneously press and hold the Wi-Fi key to turn on Wi-Fi.Fnand the corresponding function button, or vice versa, a simple press withoutFn.
After pressing the key combination, pay attention to the screen. A system notification (OSD) indicating a change in wireless connection status should appear in the lower right corner or center of the display. If the airplane icon has a line through it or is red, the network is disabled. Pressing the key again should activate the module, indicated by a change in the indicator color or the appearance of a corresponding message.
If you've disabled the module using the slider on the case, no actions in the operating system will activate it. Always begin diagnostics by checking the hardware buttons and switches, as this eliminates half of the potential problems.
Activating a wireless network in the Windows interface
If the physical buttons are checked and enabled, the next step is to configure them within the operating system. In modern versions Windows 10 And Windows 11 Network connection management has been consolidated into a convenient notification center. Click the globe or computer icon in the lower right corner of the screen, next to the clock, to open the quick panel.
In the menu that opens, find the tile labeled "Wi-Fi" or "Wireless Network." If it's grayed out, left-click it to activate it. The system should begin searching for available access points. If the tile isn't there, the adapter may be disabled in deeper settings or the driver may not be installed.
- 📡 Click the network icon in the tray and make sure Airplane mode is turned off.
- 💻 Go to
Settings → Network and Internet → Wi-Fifor detailed settings. - 🔄 Try clicking the "Show available networks" button if the list is empty.
For a more in-depth check, you can use the classic network connections interface. Press the key combination Win + R, enter the command ncpa.cpl and press EnterIn the window that opens, find the "Wireless Network" icon. If it's grayed out and labeled "Disabled," right-click it and select "Enable."
A common problem in Lenovo IdeaPad S145 Windows has an aggressive power saving policy that can disable the adapter to conserve battery power. To prevent this, uncheck "Allow the computer to turn off this device to save power" in the adapter's properties (accessible through Device Manager or the Network Connections window). This will ensure stable operation of the module even when the battery is low.
Installing and updating wireless adapter drivers
The lack of drivers is the most common reason why a laptop does not see a Wi-Fi network. Model IdeaPad S145 can be equipped with modules from different manufacturers, such as Realtek, Qualcomm Atheros or IntelTherefore, there is no universal driver, and you need to select software specifically for your hardware.
The official and safest way to find the driver you need is to use the Lenovo support website. Enter your laptop's serial number (located on the sticker on the bottom of the case) in the search field on the website. The system will automatically detect your device's configuration and provide a list of available drivers for your operating system version.
| Adapter type | Typical vendor | Where to find the equipment ID | Installation priority |
|---|---|---|---|
| Wi-Fi 5 (802.11ac) | Realtek / Qualcomm | device Manager | High |
| Wi-Fi 6 (802.11ax) | Intel / MediaTek | device Manager | Average |
| Bluetooth module | Depends on Wi-Fi | device Manager | After Wi-Fi |
| LAN (Ethernet) | Realtek | device Manager | Short |
If your laptop doesn't have internet access, download the driver on another device (smartphone or PC) and transfer it via USB cable. After downloading the installation file, run it as administrator and follow the installation wizard's instructions. Be sure to reboot the system after the installation is complete.
⚠️ Important: Do not use automatic driver update programs from untrusted sources. They may install a generic driver, which may result in unstable operation or complete device failure. Use only official Lenovo repositories.
In the device manager (called through devmgmt.msc) In the "Network Adapters" section, there shouldn't be any devices with a yellow exclamation mark or the name "Unknown Device." If such a device is present, right-click it, select "Update Driver," and specify the path to the downloaded file. Successful driver installation is key to setting up wireless communication.
☑️ Checking drivers
Diagnostics via Device Manager
Device Manager is a powerful tool for diagnosing hardware issues. If your Wi-Fi module appears in the list of network adapters but isn't working, there may be a software glitch. Try right-clicking the adapter and selecting "Uninstall device." Then, select "Action" → "Scan for hardware changes" from the top menu. The system will attempt to reinitialize the module.
Sometimes the problem lies in a software version conflict. If after a Windows update the laptop Lenovo IdeaPad S145 If your adapter stops detecting networks, it might be a good idea to roll back the driver. In the adapter properties, go to the "Driver" tab and click the "Roll Back Driver" button if it's active. This will revert the system to the previous stable software version.
It's also worth paying attention to Windows services. Click Win + R, enter services.msc and find the "WLAN AutoConfig" service. Make sure its startup type is set to "Automatic" and the service is running. Without this service running, connecting to Wi-Fi is impossible under any circumstances.
What to do if the adapter has disappeared from Device Manager?
If the adapter disappears even from the device list, this may indicate a serious power failure. Try a full static discharge: turn off the laptop, unplug the charger, hold down the power button for 15-20 seconds, then plug in the charger and turn on the device.
In rare cases, resetting TCP/IP settings via the command line can help. Launch Terminal as administrator and enter the command netsh winsock reset, and then netsh int ip resetA reboot will be required after executing the commands. This method is effective when the drivers are installed correctly, but the connection fails due to errors in the OS network stack.
Setting up BIOS and UEFI interface
On some models IdeaPad The wireless module may be disabled in the BIOS. To check this, turn off the laptop and turn it on again while quickly pressing the [Enter] key. F2 or a combination Fn + F2 When the Lenovo logo appears, you'll be able to enter the BIOS/UEFI settings menu.
In the BIOS interface, go to the tab Configuration or AdvancedFind the parameter associated with Wireless LAN, WLAN Device or Onboard Wireless. Make sure that the value opposite this item is Enabled. If installed Disabled, change the parameter and save the settings by clicking F10.
While in the BIOS, it's a good idea to check the boot and security settings, as some corporate policies or glitches may block external devices. However, for home users, it's sufficient to ensure the WLAN module is enabled. Exit the BIOS only after saving changes, otherwise the settings will not be applied.
⚠️ Caution: Be careful when changing BIOS settings. Changing unknown parameters may cause system instability. Only change values related to wireless networks (WLAN/Wireless).
After exiting the BIOS, the system will boot normally. If the module was disabled at the BIOS level, it should now be detected as new hardware. Windows will attempt to find drivers for it automatically. If this doesn't happen, return to the driver installation section.
Network reset and advanced settings
If none of the previous methods help, use the built-in network reset feature. In Windows 10 and 11, go to Settings → Network & Internet → Advanced network settings (or just scroll down) and find the "Network Reset" link. Click the "Reset Now" button.
This operation will delete all saved Wi-Fi passwords, VPN settings, and virtual adapters, resetting network settings to factory defaults. This is a drastic, but often effective, solution for connection issues when software conflicts are interfering with normal operation. After rebooting, you will need to re-enter your home network password.
- 🔌 Resetting deletes all known Wi-Fi networks and their passwords.
- 🛡️ Network-related firewall and antivirus settings are reset.
- 🔄 All network adapters and components are restarted.
For advanced users, profile clearing is available via the command line. Command netsh wlan delete profile name="Network_Name" allows you to delete a specific profile that may be causing connection errors. If you need to delete all profiles at once, use the command netsh wlan delete profile name=* i.
In conclusion, the model Lenovo IdeaPad S145 It's a standard device, and Wi-Fi issues are resolved using standard methods. The key is to consistently rule out possible causes, from a disabled button to missing drivers. Attention to detail and using official software sources guarantee a successful connection to the global network.
Why does the laptop see the network but not connect?
The most common issue is an incorrect password or encryption type. It's also possible that the router has a MAC address restriction or that security standards are incompatible (for example, a laptop only supports WPA2, but the router is configured for WPA3). Try "Forgetting" the network and reentering the password.
How do I know which Wi-Fi driver is installed?
Open Device Manager, find your wireless adapter, right-click it, and select "Properties." Go to the "Driver" tab. The version, date, and software vendor will be listed there.
Can antivirus block Wi-Fi?
Yes, some third-party antivirus programs have a built-in firewall that may block connections to public networks or consider your home network unsafe. Try temporarily disabling your antivirus for diagnostic purposes.
What should I do if the Wi-Fi icon is missing after a Windows update?
Most likely, the update replaced the working driver with an incorrect one. Go to Lenovo's website, download the Wi-Fi driver specifically for your version of Windows (even if it's newer than the driver's release date), and install it manually, first uninstalling the current one.