Changing your home network's security key is a basic procedure that's necessary if you suspect a hack or simply want to routinely enhance your security. Many users mistakenly believe this requires complex software or the help of their ISP, but you can change the settings yourself using a standard browser. The procedure involves two steps: changing the combination in the router interface and reconnecting all devices, including your laptop.
It's important to understand that after changing the router settings, your laptop will no longer see the network or will display a connection error, as the saved data will no longer comply with the new security requirements. This is normal system behavior., which indicates that the protection has indeed been updated. You will need to re-enter the current key to restore internet access.
In this article, we'll cover the steps for different operating systems, including common errors and troubleshooting methods. We won't use third-party software, as standard Windows tools and the router's web interface provide all the necessary functionality. Be prepared for internet connection to be lost on all devices for a couple of minutes.
Preparatory stage and access to the router
Before making any changes, you need to make sure your laptop is connected to the router. This can be done either wirelessly or via LAN cable, which is much more reliable, as changing settings will break the wireless connection. If you're using Wi-Fi, make sure the signal is stable, otherwise you risk losing connection to the admin panel at the most inopportune moment.
To access the settings, you'll need the gateway IP address. These are typically standard combinations like 192.168.0.1 or 192.168.1.1, but they may vary depending on the equipment model. You can find the exact address in the device's documentation or by looking at the sticker on the bottom of the router, which also contains the factory login and password for accessing the management system.
⚠️ Important: If you are changing settings remotely (away from home), make sure you have an alternative internet connection (e.g., mobile data), otherwise, after changing the password, you will not be able to complete the setup or call for help.
Open any browser on your laptop and enter the IP address in the address bar. If the page doesn't load, check your DNS settings or try opening the page in incognito mode. After successfully entering the address, the system will request authorization. Enter the information found on the device's sticker, unless you've changed it previously.
Find the wireless network section in the interface
Router interfaces vary greatly, but the logic behind their design is the same. You need to find the section responsible for the wireless network. It may be called Wireless, Wi-Fi, Wireless mode or WLANIn modern models such as Keenetic or Mikrotik, the settings can be divided into different tabs depending on the frequency (2.4 GHz and 5 GHz).
Within this section, look for a subsection titled Security (Security) or simply basic Wi-Fi settings. This is where the field for entering a new password is located. It is often labeled as WPA Pre-Shared Key, Passphrase or Wireless network passwordDon't confuse this field with the password for logging into the router itself.
Please pay attention to the encryption type. For maximum protection, we recommend choosing WPA2-PSK or WPA3, if your devices support this standard. Outdated protocols like WEP or WPA-TKIP should not be used, as they are easily hacked.
- 📡 Find the Wireless or Wi-Fi tab in the menu on the left or at the top.
- 🔐 Go to the Wireless Security or Security Settings subsection.
- 📝 Make sure the WPA2-PSK (AES) encryption method is selected.
- 💾 Don't forget to click the Save or Apply button after entering the data.
What to do if you forgot your router password?
If you changed your router's password and forgot it, the only way to restore access is to reset the device to factory settings. To do this, locate the small hole marked "Reset" on the router's casing and press it with a paperclip for 10-15 seconds while the router is turned on. After this, the router will reset to the default username and password listed on the sticker, but you'll have to re-enter all your internet settings.
The procedure for changing the password and saving settings
In the new password field, enter your chosen combination. It should be complex enough to resist brute-force attacks, but you should also remember it or have a secure location to store it. It's a good idea to use a combination of uppercase and lowercase letters, numbers, and special characters.
After entering the data, be sure to click the button Save (Save) or Apply (Apply). At this point, the router may reboot the wireless module, and the connection to the laptop will be lost. This is normal. Some models require a full reboot of the device for the changes to take effect, and a notification will appear on the screen.
⚠️ Note: ISP router interfaces (for example, Sagemcom from Rostelecom or Sercomm from MGTS) may have limited functionality. If you can't find the settings you need, your ISP may have blocked this option, and you should call technical support.
If the page freezes or displays an error after clicking the save button, try refreshing the page. If the router isn't responding to the old IP address, it may have changed it or be frozen. In this case, briefly powering off the router may help.
☑️ Checklist before saving
Connecting a laptop to a network with a new password
Once the router has applied the new settings, the laptop will likely attempt to reconnect automatically, but to no avail. A Wi-Fi icon with a yellow exclamation point or red cross will appear in the Windows system tray (near the clock). The system will inform you that the network settings saved on this computer do not meet the requirements for this network.
To fix this, you need to delete the old network profile. Click on the Wi-Fi icon, select your network, right-click and select Forget (Forget). If there is no such option, go to Settings → Network & Internet → Manage known networks, find your network in the list and click Forget.
After deleting the profile, find your network again in the list of available connections and click ConnectThe system will prompt you for a new password. Enter it carefully, observing capitalization. If you used special characters, make sure your keyboard layout matches the characters you entered.
Sometimes Windows can get stuck on the "Obtaining IP address" step for a long time. In this case, you can try resetting the network settings using a console command, but more often, simply rebooting the laptop after you've "forgotten" the network resolves the issue.
Solving common connection errors
Even if you enter the password correctly, errors can occur. One of the most common is "Can't connect to this network" or the IP address being retrieved endlessly. This could mean that the wireless adapter drivers on your laptop are outdated or are not working correctly after changing the encryption type.
The problem may also be due to an IP address conflict if the router hasn't updated its DHCP client table yet. In this case, rebooting the network stack helps. Open a command prompt as administrator and enter the command to reset TCP/IP settings.
netsh int ip resetnetsh winsock reset
ipconfig /flushdns
After executing the commands, be sure to restart your laptop. If the error persists, try temporarily disabling your antivirus or firewall, as they may be blocking re-authorization, considering the change in settings to be suspicious activity.
| Error type | Probable cause | Solution |
|---|---|---|
| Invalid security key | Input or case error | Use the character display function |
| Obtaining IP address... | DHCP or driver failure | Network reset or router reboot |
| No internet access | Problems with the provider | Checking cable and service status |
| Network not found | The router hid the SSID. | Connect manually by name |
Setting up automatic connection and security
Once successfully connected, make sure "Connect automatically" is checked. This will save you from having to enter your password every time you turn on your laptop. However, if you're in a public place, it's best to disable this feature for security.
For increased security, it's also recommended to hide the network name (SSID) in your router settings. This way, your laptop won't see the network in the general list, and you'll have to create a connection manually, entering the network name and security type. This will make life more difficult for potential hackers, although it's not a panacea.
Changing your password regularly is a good habit, but doing it too often (e.g., every week) is inconvenient. The optimal interval is every 3-6 months or immediately after you've given the password to guests. Don't use the same passwords for Wi-Fi and important accounts (email, bank).
⚠️ Important: If you use WPS for a quick connection, be sure to disable it in your router settings. This protocol has vulnerabilities that can allow someone to recover your Wi-Fi password within a few hours.
Remember that your network's security depends not only on the strength of your password but also on the up-to-dateness of your router's firmware. Check for updates in the "System Tools" or "Administration" sections. New software versions often contain security patches that close security holes.
Is it possible to recover an old password?
If you've changed your password and forgotten the new one, and your devices have already disconnected, you won't be able to recover the old password through the router interface—it's displayed as asterisks or dots. The only option is to view it on an already connected device (for example, in the network properties on a rooted smartphone or on another PC that hasn't yet disconnected) or reset the router.
Why can't my laptop see the network after changing the password?
Most often, this happens because the router has changed the broadcast channel or security standard (for example, from mixed to n-only), and the laptop's network adapter driver is outdated and doesn't support the new settings. It's also possible that the network has become hidden. Try updating the Wi-Fi adapter drivers from the laptop manufacturer's website.
How do I change my password if I don't have access to a cable?
You can change the password over Wi-Fi, but there's a risk of losing the connection while saving the settings if the router reboots. If this happens, connect to the router via cable (if possible) or wait until it completely reboots and the network reappears, then log in again.
Does changing your password affect your internet speed?
Changing your password itself doesn't affect speed. However, if you simultaneously change the encryption type (for example, enabling WPA3) or channel, older devices may slow down or stop connecting. Make sure all your devices support the selected security standard.
What should I do if I forgot the Wi-Fi password on an already connected phone?
On Android (with root access) or iOS (via shortcuts or syncing with a Mac), you can view the saved password in plain text. On Windows, this can be done via "Network and Sharing Center" → "Wireless Network Properties" → "Security" tab → "Show characters as you type."
Do I need to change my password if my neighbors are using my Wi-Fi?
Yes, that's the first step. But simply changing the password isn't enough, as your neighbors may have saved it. After changing the password, be sure to use the "Forget Network" feature on your devices to prevent them from trying to connect with the old password, and check the list of connected clients in your router to ensure that unauthorized ones have been disconnected.