When the internet suddenly stops working or a device requires re-entering a security key, it often catches users off guard. It seems that WiFi password It simply disappeared or was changed without your knowledge, causing panic and many questions about home network security. In fact, in most cases, data doesn't disappear without a trace, but is simply hidden or reset to factory defaults due to software or hardware failures.
Understanding how it works WPA2/WPA3 encryption protocol Knowing where your credentials are stored will help avoid the unnecessary steps of completely reconfiguring your equipment. Often, the problem stems from a simple driver update on a laptop or accidentally pressing the reset button on the router, rather than from a network hack. In this article, we'll cover all possible access loss scenarios and how to resolve them.
The main reasons for password disappearance
The first thing to rule out is a full reset of the router to factory settings. If you or someone else in your household accidentally pressed the button Reset on the back of the device for more than 10 seconds, the network configuration returned to its original state. In this case, Network SSID (WiFi name) will return to the default one indicated on the sticker, and the password will return to the factory default or disappear altogether if no protection is set by default.
Another common cause is the automatic firmware update of the router. Some models TP-Link, ASUS, or D-Link When upgrading to a new version of software, certain user settings, including encryption keys, may be reset, especially if the update is unsuccessful or interrupted.
⚠️ Warning: If the router was rented from a provider, resetting the settings may result in the loss of specific connection parameters (VPI/VCI, VLAN), and the Internet will stop working even after entering the correct password.
It's also worth checking if the network security type has changed. Sometimes the router switches on its own. WPA2-PSK to an open network or WEP due to a protocol version conflict, which makes the password entry field inactive or unnecessary for connection.
On the client side (your phone or laptop), the problem may be caused by deleting a network profile. Operating systems Windows 10/11 or Android They may "forget" the network after critical system updates, requiring you to re-enter data, even though nothing has changed on the router itself.
Where can I find the factory WiFi password?
If the settings have been reset or you're connecting to the device for the first time, the code you're looking for is usually found on a physical sticker. It's located on the bottom or back of the router and contains technical information needed for initial setup.
Look for the field with the name Wireless Password, WPA Key or simply PINOn devices from different manufacturers, the designations may differ: Keenetic it's often "Network Password" and MikroTik Only a single code may be specified to access the interface, which must be changed manually.
It's important to distinguish between your WiFi password and the password for logging into the web interface (admin panel). Although they are often the same by default, they are different. credentialsTo access the router settings via a browser, a link is usually used admin/admin or admin/password_from_sticker.
If the sticker is missing and the reset has been performed, you will have to connect the device to the router via a LAN cable and enter the setup interface to manually set a new security key, as the password may be missing.
How to view a saved password on a computer
If you have a computer that's already connected to the network or has been connected previously, the operating system may have saved the key in its registry. In Windows, this can be done through the Network Control Panel, without using third-party software.
Open your network settings, select "Network and Sharing Center," and then click on your wireless network name. In the wireless network properties window that opens, go to the "Security" tab and check the box next to "Security." "Show input characters".
☑️ Finding a password in Windows
For macOS users, the procedure is slightly different: open Keychain Access using Spotlight search. In the list of certificates and keys, find your network name, double-click it, and in the window that opens, check the "Show password" box, confirming the action with biometrics or an administrator password.
If your computer isn't connected via cable and you've forgotten your WiFi connection, you can try using the command line. Enter the command netsh wlan show profile name="Network_Name" key=clearIn the "Security Settings" section, the "Key Contents" line will display the code you are looking for.
Restoring access via the router's web interface
The most secure way to find or change the password is to access the router's settings. To do this, connect your computer to the device via cable or WiFi (if you have password-less access, such as via WPS) and enter the IP address in your browser.
Most often the address is 192.168.0.1 or 192.168.1.1, less often 192.168.31.1 (for Xiaomi) or domain name (for example, my.keenetic.net). After entering the administrator login and password (often admin/admin) the control panel will open.
| Router brand | Default address | WiFi menu section | Password field |
|---|---|---|---|
| TP-Link | 192.168.0.1 | Wireless / Wireless Security | Wireless Password |
| ASUS | 192.168.1.1 | Wireless network | Authentication method |
| D-Link | 192.168.0.1 | Wi-Fi / Security Settings | PSK encryption key |
| Xiaomi | 192.168.31.1 | WiFi settings | Password |
Once you find the appropriate section, you'll be able to not only view your current password but also change it to a more complex one. Be sure to click the button "Save" or "Apply", otherwise the changes will not take effect, and the router will reboot with the old settings.
In modern models with support for cloud services (for example, Tenda or Zyxel) The settings can be synced with the mobile app. Check the manufacturer's app on your smartphone—often the password is displayed in the main menu or a QR code can be generated for guests.
Using WPS to connect without entering a code
Technology Wi-Fi Protected Setup Allows you to connect devices to the network without manually entering a password, using a physical button on the router or a PIN code. This is ideal if you've forgotten the code but have physical access to the equipment.
Click the button WPS On the router body (sometimes it's combined with the WiFi power button and marked with two arrows). The WPS indicator will start blinking, indicating connection standby mode. Within 2 minutes, press the connect button on the client device (laptop, phone).
WPS technology security
The WPS method is considered vulnerable because the PIN code can be brute-forced. If you don't use this feature, it's recommended to disable it in your router settings to improve network security.
On Android smartphones, the process is even simpler: in the WiFi settings, select "Advanced" or the three-dot menu, then "Connect via WPS." After activating the feature on your phone, press the button on the router, and the connection will be established automatically.
It is worth noting that on some new routers and in the latest versions Windows 10/11 WPS support may be disabled by default for security reasons. In this case, you'll need to use other methods to restore access.
What to do if nothing helps
If none of the methods work, there's a radical but effective option: a hard reset. To do this, locate the recessed hole. Reset on the case, take a paper clip, press the button for 15-20 seconds with the power on.
The router will flash all its lights and reboot. After that, it will be as good as new: with the factory network name and password from the sticker. You will need to reconfigure your ISP connection type (PPPoE, L2TP, or DHCP) if your ISP doesn't use automatic configuration.
⚠️ Important: Before resetting, make sure you have a contract with your provider or authorization data (PPPoE login/password), otherwise the Internet will not work even after restoring WiFi.
As a last resort, if your router is provided by your provider and you're concerned about messing up the settings, it's best to contact technical support. They can remotely check the device's status or provide the current factory code for your model.
Once access has been restored, it is recommended to immediately change the default password to a complex one consisting of letters and numbers to avoid future problems and protect the network from unauthorized access by neighbors.
Frequently Asked Questions (FAQ)
Can a virus delete a WiFi password?
A virus itself rarely removes the password from the router settings, as this requires device administrator rights. However, malware on a computer can change the operating system's network settings, "forgetting" the network, or redirect traffic. Scan the system with an antivirus program.
Why does the router require a password even though it is entered correctly?
This may be due to incompatible encryption standards (for example, the router is set to WPA3, but the device only supports WPA2). Try changing the security type in the router settings to WPA2-PSK (AES).
How can I find out my password if the sticker has come off?
If there's no sticker and the computer doesn't remember the network, the only option is to reset the router using the Reset button. This will reset the router to its default factory settings, which can be found online for the exact device model (for example, "TP-Link Archer C6 default password").
Does a power outage affect password saving?
Short-term power surges typically don't affect saved settings, as they're stored in non-volatile memory. However, a strong surge can corrupt the firmware, resulting in resetting the settings or unstable operation of the WiFi module.