Changing your wireless network access key is a basic but critical procedure for securing your digital space. Many operating system users Windows 10 Users need to update their security data when they suspect unauthorized access to their Wi-Fi network, or simply as part of routine security enhancements. It's important to understand that the operating system itself doesn't store a "master password" for the entire network, but only remembers keys for automatic connections to known access points.
Changing credentials affects not only your computer but also the router that distributes the internet. If you change the settings on just one device, other devices will stop seeing the network or won't be able to authenticate. Therefore, a comprehensive approach is required: first, change the settings on the signal source, and then update them on all client devices, including yours. PC with Windows 10.
In this guide, we'll walk you through every step, from logging into the router's admin panel to clearing saved profiles in the operating system. We'll also cover common errors you might encounter during reconfiguration and how to quickly resolve them without losing internet access.
Preparing to change your password: What you need to know in advance
Before making any changes to your network configuration, you must ensure that you have physical or cable access to your router. Changing your WiFi password over a wireless connection may result in the connection to your router being disconnected while the settings are being applied., which will make it impossible to complete the procedure if you are not connected via LAN cable. This is especially true for older hardware models, which may require a reboot for the changes to take effect.
You'll need to find the default gateway address and your control panel login credentials. This information is usually found on a sticker on the bottom of the device, but if you've changed them previously, you'll need the latest information. Default addresses often look like this: 192.168.0.1 or 192.168.1.1, however, depending on the manufacturer (TP-Link, ASUS, D-Link) they may vary.
It's also worth preparing a new, complex password that will be difficult to brute-force. It should contain at least eight characters, including uppercase letters, numbers, and special characters. Using simple combinations like "12345678" or a date of birth will negate all protocol security. WPA2/WPA3.
⚠️ Important: If you are changing settings remotely (not being near the router), make sure you have an alternative internet connection (e.g., 4G/5G mobile) so that in the event of a failure you can find a solution to the problem or call for support.
Logging into the router interface and changing security settings
The first step is to connect your computer to the router. It's best to use an Ethernet cable, plugging one end into the router's LAN port and the other into your PC's network card. Open any browser and enter the gateway's IP address in the address bar. If you don't know it, you can find it using the Windows command line by entering the command ipconfig and find the line "Default gateway".
After entering the address, the system will ask for a login and password. For new devices, these are often "admin/admin," but modern models may require you to set a custom administrator password upon first power-on. Once in the web interface, look for a section labeled "Wireless," "Wi-Fi," "Wireless Mode," or "WLAN." We're looking for the "Wireless Security" tab.
In this section, find the "Wireless Password," "PSK Password," or "Wireless Network Password" field. Enter a new character combination there. Make sure the encryption method is set to WPA2-PSK (or WPA3, if your equipment supports this modern standard), as the outdated WEP is easily cracked. Don't forget to click "Save" and then, possibly, "Reboot" to reboot the router.
What should you do if you forgot your router admin password?
If the default login/password pair doesn't work, and you don't remember the changed data, the only solution is to reset the router to factory settings. To do this, locate the small hole marked "Reset" on the router's case and press it with a paperclip for 10-15 seconds while the router is powered on. This will restore the router to the factory settings indicated on the sticker, but all your personal settings (such as your ISP connection type) will be lost.
Deleting an old network profile in Windows 10
After changing the router password, your Windows 10 computer will attempt to connect using the old information. Since it's no longer correct, the connection will fail, and the system may display the error "Can't connect to this network." To fix this, you need to "forget" the network by deleting the saved profile.
The easiest way to do this is through the graphical interface. Click the Wi-Fi icon in the system tray (near the clock), select "Network settings," or go to Start → Settings → Network & Internet → Wi-FiClick the "Manage known networks" link. Find your network in the list, click it, and select the "Forget" button.
The network will now disappear from the list of known networks, and the next time Windows detects it, it will behave as if it's seeing it for the first time. This will force the system to prompt for the password again. If the network doesn't appear in the list of known networks, but the connection isn't working, you can use a more thorough cleaning method via the command line.
☑️ Check before connection
Using the command line to manage networks
For advanced users or when the graphical interface isn't working correctly, the command prompt (CMD) or PowerShell is the ideal tool. This method allows for deeper management of network profiles. Open the command prompt as administrator: right-click the Start menu and select "Windows PowerShell (Admin)" or "Command Prompt (Admin)."
First, you need to list all saved WiFi profiles. Enter the command netsh wlan show profilesYou'll see a list of all networks your computer has ever connected to. Find your network name (SSID) in the list. If the name contains spaces, enclose it in quotation marks.
To delete a specific profile, use the command netsh wlan delete profile name="Network_Name"Replace "Network_Name" with the exact name of your WiFi network. Once the command is successfully executed, a message will appear stating "Profile 'Name' has been removed from the 'Wireless Network' interface." You can now try reconnecting through the standard menu.
netsh wlan show profiles
netsh wlan delete profile name="MyHomeWiFi"
This method also allows you to view the saved password if you have forgotten it but have access to the system with administrator rights. Command netsh wlan show profile name="Network_Name" key=clear will display all parameters, including the "Key Content" field, where the password will be visible in clear text.
Connecting to the network with a new password
Now that the old profile is deleted and the router is configured, you can connect. Click the wireless network icon in the lower right corner of the screen. If the network isn't immediately visible, click the arrow button to refresh the list or temporarily turn Airplane Mode on and off.
Find your network in the list and click "Connect." Windows will ask for the network security key. Enter the new password you set on the router. Be careful: the system is case-sensitive. Once entered, click "Next."
If the password is correct, the system will display "Connected, secure." At this point, Windows may ask, "Do you want to allow your PC to be discovered by other PCs connected to this network?" For a home network, this is typically "Yes," and for a public network, "No." This is a network profile setting (Private or Public network) that affects your computer's visibility to other devices.
Diagnosing connection issues after changing your password
Even if you enter the password correctly, technical difficulties may arise. Often, the problem lies in the DNS cache or network adapter drivers that have "remembered" old settings. If the connection fails, try running Windows' built-in troubleshooter: Settings → Update & Security → Troubleshoot → Advanced troubleshooters → Network Adapter.
Another common cause is an IP address conflict or incorrect DNS settings. Try resetting your network settings with the command netsh int ip reset And netsh winsock reset in the command prompt with administrator rights, and then be sure to restart the computer. This will return the Windows network stack to its original state.
It's also worth checking if your router has MAC address filtering enabled. If this feature is enabled, even with the correct password, a new (or "updated") device won't be allowed onto the network. In this case, you'll need to either disable filtering or whitelist your network card's MAC address in the router settings.
Comparison of password change methods
To make it easier to understand the various access control methods, we've prepared a comparison table. It will help you choose the best option based on your situation and level of access to your equipment.
| Method | Necessary access | Complexity | Impact on other devices |
|---|---|---|---|
| Via the router's web interface | Cable or WiFi + gateway address | Average | Disconnects all devices, requires reconnection |
| Provider's mobile application | ISP/router account | Low | Automatic updates on devices in the ecosystem |
| Resetting the router | Physical access to the button | High (needs reconfiguration) | Complete disconnection, reset to factory default passwords |
| Deleting a profile in Windows | Access to a PC | Low | Doesn't change the password on the router, only on the PC |
⚠️ Please note: Router interfaces and operating system versions are regularly updated. The location of menu items, tab names, and window appearance may differ from those described in the instructions. Always refer to the device's operating logic, not just the button names.
Questions and Answers (FAQ)
Is it possible to change a WiFi password without access to a cable?
Yes, this is possible if you're already connected to the network via WiFi. However, once you apply the new settings to your router, your computer will lose the connection. To complete the setup (for example, to test other devices), you'll have to reconnect with the new password. The risk is that if you make a mistake in the settings, you'll lose access to the router's admin panel and won't be able to fix anything without a cable.
What should I do if Windows says "Can't connect to this network" after changing my password?
Most likely, there is a conflicting profile saved on your computer. Run the command netsh wlan delete profile name="Network_Name" in the command prompt as administrator. Also, try updating the network card driver through Device Manager or temporarily disabling any antivirus or firewall software that may be blocking re-authorization.
Do I need to change the password on all devices again?
Yes. The password is stored in the memory of each device (smartphone, tablet, laptop, smart speaker). Once the key on the router is changed, all of them will lose access. You will have to go to each device, select your network, and enter the new password. Internet of Things (IoT) devices, such as sockets or lamps, often require a full reset and reconfiguration through the app.
How to create a strong password that is easy to remember?
Use the phrase method: take a sentence that only you understand, such as "I like to drink coffee at 7 a.m.", and transform it using the first letters and symbols: "Ylpkv7u!" This password contains 8 characters, numbers, and special characters, making it very difficult to crack by brute force, but easy to recover by association.