My laptop won't connect to Wi-Fi, even though the password is correct: what should I do?

Have you entered your laptop's Wi-Fi password for the hundredth time, only to see a persistent "Unable to connect to the network" error or an endless loading screen? This can be frustrating, especially when other devices—smartphones, tablets, and smart speakers—connect without issue. The cause could be related to your laptop's settings, your router's settings, or even external interference.

In this article we will look at all possible reasons, which causes your laptop to refuse to connect to Wi-Fi despite the correct password. From trivial input errors to complex technical problems, you'll get step-by-step instructions With illustrations, diagnostic tips, and troubleshooting solutions. And at the end, an FAQ with answers to the most frequently asked questions.

Important: If you're using a corporate network or public Wi-Fi (at a cafe or airport), some solutions may not work due to administrator restrictions. In this case, please contact the establishment's support team.

1. Check the obvious: password and network name

Yes, it sounds trivial, but 30% of problems Wi-Fi connection issues are resolved at this stage. Even if you're sure you're entering the password correctly, it's worth double-checking a few things:

• 🔍 Character case: Passwords are case sensitive. Password123 And password123 — these are two different passwords. Make sure the key Caps Lock turned off.
• 📡 Exact network name (SSID): Sometimes there are several networks with similar names in the visibility zone (for example, "MyWiFi" And "MyWiFi_5G"). Connect to the one whose password you know.
• 🔄 Hidden symbols: if the password contains spaces, dashes or special characters (@#$%), they're easy to miss. Try typing the password in Notepad and then copying it from there.

If you recently changed your router password, your laptop may have retained the old data. In this case:

1. Open Settings → Network and Internet → Wi-Fi (Windows 10/11).
2. Find your network in the list and click Managing known networks.
3. Select the network and click Forget.
4. Try connecting again using the current password.

⚠️ Attention: If you use guest access On a router (for example, for friends), make sure you're connecting to the main network. Guest networks often have a separate password and device restrictions.

2. Problems with Wi-Fi adapter drivers

If a laptop sees networks, but does not connect to any of them (or connects, but without internet access), the culprit may be network adapter driverThis is especially true after updating Windows or installing new programs.

How to check:

1. Click Win + X and select device Manager.
2. Expand the tab Network adapters.
3. Find the device with the names Wireless, Wi-Fi or 802.11 (For example, Intel Wi-Fi 6 AX200).
4. If there is an exclamation mark next to the adapter, the driver is not working properly.

Solutions:

• 🔄 Update driver: Right-click on the adapter → Update driver → Automatic search.
• 🗑️ Uninstall and reinstall: Uninstall the driver through the manager, then restart the laptop - Windows will install it again.
• 💻 Download from the manufacturer's website: For models Lenovo, HP, Asus etc. It is better to download drivers from the official website, and not through Windows Update.

⚠️ Attention: After updating the drivers, some laptops (especially Dell And Acer) may require additional configuration in BIOSIf Wi-Fi has disappeared completely, check if the adapter is enabled in the BIOS settings (section Advanced → Wireless).

3. Router settings: MAC filtering, network mode, channel

If the problem is observed only with one laptop, and other devices connect normally, the culprit may be router settingsMost often it is:

• 🔒 MAC address filtering: Your router may be configured to only allow connections from devices with authorized MAC addresses. Check the list in your router settings (usually in the "Access" section). Wireless → MAC Filter).
• 📶 Unsupported network mode: if the router is operating in mode 802.11ac (Wi-Fi 5), and the laptop only supports 802.11n (Wi-Fi 4), the connection will be impossible. Try changing the mode to Mixed (b/g/n).
• 🎛️ Congested channel: If the router is operating on a channel occupied by neighbors, interference may occur. In the router settings (section Wireless → Channel) select the channel manually (for example, 1, 6 or 11 for 2.4 GHz).

How to access router settings:

1. Open your browser and type in the address bar 192.168.0.1 or 192.168.1.1 (the address is indicated on the router sticker).
2. Enter your login and password (usually admin/admin or admin/password).
3. Go to the section Wireless or Wi-Fi.

Make sure MAC filtering is disabled|

Change network mode to mixed (b/g/n)|

Select channel manually (1, 6 or 11)|

Check if DHCP server is enabled-->

If you are not sure about the settings, you can reset the router to factory settings (button Reset on the back panel). After the reset, all connected devices will be disconnected, and you will have to set up the network again.

4. IP address conflicts and TCP/IP settings

Sometimes a laptop can't obtain an IP address from the router, resulting in a connection error. This can occur due to:

• 🔢 Static IP: if the IP address manually entered on the laptop conflicts with the router's range.
• 🔄 DHCP failure: The router does not assign IP addresses automatically.
• 🛡️ Firewall or antivirus: some programs (for example, Kaspersky, Avast) block network connections.

How to fix:

1. Click Win + R, enter ncpa.cpl and press Enter.
2. Right click on Wireless network → Properties.
3. Select Internet Protocol version 4 (TCP/IPv4) and press Properties.
4. Check the boxes Obtain an IP address automatically And Obtain DNS server address automatically.
5. Restart your laptop and try connecting again.

If the problem persists, try manually entering Google's DNS:

8.8.8.8
8.8.4.4

5. Hardware problems: Wi-Fi button, antenna, overheating

If software methods do not help, it is worth checking hardware laptop. Common causes:

• 🔘 Disabled Wi-Fi button: on some models (HP Pavilion, Lenovo IdeaPad) There is a physical button or switch to turn off Wi-Fi. Make sure it is in the on position. ON.
• 📡 Damaged antennaIf your laptop has been dropped or repaired, the Wi-Fi antenna cable may be damaged. In this case, the signal will be very weak or absent altogether.
• 🔥 Adapter overheatingIf your laptop gets too hot, the Wi-Fi module may turn off for protection. Check the temperature using the program HWMonitor.

How to diagnose:

1. Check to see if the Wi-Fi indicator on the laptop is lit. If not, the adapter is disabled.
2. Connect your laptop to the router via cable. If the internet works, the problem is definitely with the Wi-Fi module.
3. Try connecting to Wi-Fi in a different location (for example, a cafe). If the problem persists, the laptop is to blame.

⚠️ AttentionIf you suspect antenna damage, do not disassemble the laptop yourself—this may void the warranty. Contact a service center, especially if the device is under warranty.

6. External interference and features of the 5 GHz network

If your router operates in two bands - 2.4 GHz And 5 GHz, the laptop may not support 5 GHz network or experience interference. Here's what you need to know:

• 📶 2.4 GHz vs. 5 GHz:
  • 2.4 GHz: greater range, but lower speed and more interference from other devices (microwaves, Bluetooth).
  • 5 GHz: higher speed, but smaller radius and worse penetration through walls.
• 🚫 IncompatibilityOlder laptops (pre-2015) may not support 5 GHz. Check your model's specifications.
• 🛡️ Interference from neighbors: If there are many networks on the same channel, the signal will be unstable. Use apps like Wi-Fi Analyzer (Android) for channel load analysis.

Solutions:

1. If your laptop doesn't see the 5 GHz network, connect to 2.4 GHz (usually the network name contains an indication, for example "MyWiFi_5G").
2. In your router settings, disable 5 GHz if you don't need it, or enable it if your laptop supports it.
3. If the signal is weak, try moving the router closer to your laptop or use repeater.

How do I know if my laptop supports 5GHz?

Open Device Manager → Network Adapters, find the model of the Wi-Fi module (for example, Intel Dual Band Wireless-AC 7260) and search for its specifications on Google. If the name contains Dual Band or AC — supported.

7. Security protocol issues

Modern routers support several types of Wi-Fi encryption: WPA3, WPA2, WPA and outdated WEPIf the laptop does not support the selected protocol, connection will be impossible.

How to check:

1. Go to your router settings (see section 3).
2. Go to Wireless → Security (or Protection).
3. See what encryption type is selected (eg. WPA2-PSK [AES]).

Solutions:

• 🔐 If it's worth it WPA3, try changing it to WPA2-PSK (more compatible).
• 🚫 If it's worth it WEP, change to WPA2 — WEP is unsafe and can be blocked by modern operating systems.
• 🔄 If your laptop is older than 2010, it may not support AESIn this case, select TKIP or TKIP/AES.

After changing the settings, do not forget to save them and reboot the router.

8. Reset Windows network settings

If none of the above helps, the last chance is reset network settings Windows: This will remove all saved networks, VPNs, and other settings, returning them to their "as is" state after installation.

How to reset:

1. Open Settings → Network & Internet → Status.
2. Scroll down and click Network reset.
3. Confirm the action and restart the laptop.

After reboot:

• Windows will automatically reinstall your network adapters.
• You will have to re-enter your Wi-Fi password.
• Check if the problem is resolved.

⚠️ AttentionResetting your network will delete all VPN connections and proxy settings. If you use these for work, save your data beforehand for reconfiguration.

FAQ: Frequently Asked Questions

My laptop connects to Wi-Fi, but there's no internet. What should I do?

If your laptop is connected to the network, but pages are not loading, check:

1. Is the internet working on other devices? If not, the problem is with your provider.
2. IP and DNS settings (see section 4). Try entering Google DNS (8.8.8.8).
3. Is your antivirus or firewall blocking access?

If nothing helps, reboot the router (unplug it from the power outlet for 30 seconds).

My laptop can't see any Wi-Fi networks. What's wrong?

Possible reasons:

• The Wi-Fi adapter is disabled in the BIOS or by a physical button.
• The adapter driver is not installed or is damaged.
• Hardware failure (Wi-Fi module is damaged).

Try:

1. Turn on Wi-Fi using the button on the case (if available).
2. Update the driver (see section 2).
3. Connect an external Wi-Fi adapter (USB) for testing.

Can a virus block a Wi-Fi connection?

Yes, some viruses and malware can:

• Change network settings (for example, enter an incorrect DNS).
• Block access to specific websites or the internet entirely.
• Install a proxy server without your knowledge.

What to do:

1. Scan your system with an antivirus (for example, Malwarebytes or Dr.Web CureIt!).
2. Check your proxy settings in Settings → Network & Internet → Proxy.
3. Reset network settings (see section 8).

My laptop connects to Wi-Fi, but the speed is very slow. Why?

Reasons for low speed:

• Overloaded Wi-Fi channel (see section 6).
• Weak signal (many walls, long distance to the router).
• Speed ​​limitation on the router (Qos, Parental Control).
• Background downloads on a laptop (torrents, updates).

Solutions:

1. Connect to a 5GHz network (if supported).
2. Move the router closer to the laptop.
3. Disconnect unnecessary devices from the network.
4. Check if Windows is downloading anything in the background (Settings → Update & Security).

After updating Windows, my laptop stopped connecting to Wi-Fi. What should I do?

Windows updates often break drivers. Try this:

1. Roll back the Wi-Fi adapter driver (Device Manager → Network Adapters → Properties → Driver → Roll Back Driver).
2. Uninstall the latest Windows update (Settings → Update & Security → View update history → Uninstall updates).
3. Download the latest driver from the laptop manufacturer's website.

If the problem persists, wait for the next Windows update—bugs are often fixed in new patches.