Changing your home network password is a basic security measure that should be performed regularly or if you suspect a hack. For Beltelecom subscribers using fiber-optic terminals of the following model: ZTE MT PON AT 4Changing the access key requires careful attention to interface details. Incorrect actions can result in loss of access to settings or temporary disconnection from all devices in the home.
In this article, we'll walk you through the entire process in detail: from physical connection to entering new encryption parameters. You'll learn how to access hidden menu sections where essential options are often hidden, and how to avoid common mistakes when saving your configuration. Securing your network directly depends on the complexity of the selected key and its correct installation in the system.
Before you begin, make sure you have access to the device you'll be using to configure the settings. This could be a computer connected via cable or a smartphone connected to your current WiFi network. If you've completely lost access to the network, you'll need to reset the device to factory settings, but in this guide, we'll cover the standard method for changing the password via the web interface.
Preparing for setup and logging into the web interface
The first step is to ensure a stable connection between your control device and the terminal. ZTE MT PON AT 4It's best to use a wired connection via a LAN port, as this ensures seamless connection while making network configuration changes. If this isn't possible, make sure your laptop or phone is within range of a strong WiFi signal.
To access the control panel, open any browser and enter the router's IP address in the address bar. By default, ByFly equipment most often uses the address 192.168.1.1 or 192.168.0.1The exact address, as well as the login and password, are often indicated on a sticker located on the bottom of the device.
After entering the address, the system will request authorization. Standard credentials usually look like this: admin / admin or user / userHowever, in modern Beltelecom firmware versions, they may be customized. If the standard pair doesn't fit, check your contract with your provider or the sticker on the device.
⚠️ Note: If you previously changed your router password and forgot it, you can only restore access by completely resetting the device using the Reset button. This will return all settings, including the network name and WiFi password, to factory defaults.
The interface of ZTE terminals may vary depending on the firmware version installed by your provider. In some cases, switching to "Expert Mode" or "Administrator" is required to access advanced wireless network settings. Standard user mode may hide important security options.
Navigating the WLAN settings menu
After successful authorization, you will be taken to the main device status page. Interface ZTE MT PON AT 4 usually has a top or side menu. You need to find the section responsible for the wireless network. It may be called Network, WLAN, Wireless or Wireless network.
Within this section there are often several tabs. Look for the subsection titled WLAN Basic, SSID Settings or Basic settingsThis is where the network name (SSID) and encryption key settings are located. Be careful: PON terminals often support multiple networks (2.4 GHz and 5 GHz), and the settings for each may be located in different tabs.
To make changes in most interfaces, you need to activate edit mode. Look for the button Modify, Edit or ChangeWithout clicking this button, the input fields may be locked and you will not be able to enter a new password.
Why aren't my settings saved?
If the changes aren't applied after clicking Apply, check if WPS mode is enabled on your router. Sometimes, active WPS blocks manual password changes until it's disabled.
It's important to distinguish between the router password (which you entered at the beginning) and the WiFi network password (which we're changing now). In the interface, they're often located in completely different menu sections. Make sure you're in the wireless settings section. WLAN Security.
Selecting the encryption type and creating a key
In the security settings section, you will see a field for entering a new password. It may be called WPA PreSharedKey, Passphrase or Network keyIt is critical to choose the right encryption type. For maximum compatibility and security, it is recommended to use the standard WPA2-PSK or mixed mode WPA/WPA2-PSK.
The encryption algorithm must be set to AESUsing an outdated algorithm TKIP can significantly reduce your internet connection speed and make your network vulnerable to hacking. Modern devices, such as smartphones and Smart TVs, may even refuse to connect to networks with weak encryption.
When creating a new password, follow security guidelines. It should be at least 8 characters long, include uppercase and lowercase letters, and numbers. Avoid using simple sequences or birthdays. A strong password will protect you from automated password guessing.
Some firmware versions allow you to set up a guest network with a separate password. This is a convenient feature if you often have friends over and don't want to give them access to the main network where your personal devices and smart home system are connected.
Saving configuration and reconnecting
After entering a new password and selecting the encryption type, you must click the save button. It may be called Apply, Save or ApplyAt this point the router ZTE MT PON AT 4 The wireless network module will reboot. All devices connected to the WiFi will immediately lose connection.
Your control device (computer or phone) will also disconnect. If you configured the router via WiFi, you'll need to re-find your network in the list of available networks and enter a new password. With a wired connection, internet may be temporarily lost, but a LAN cable connection to the router usually re-establishes automatically within 10-20 seconds.
If the device displays "Unable to connect" after entering the new password, try selecting "Forget network" (or "Delete network") on your phone or computer and reconnect. Old saved security data may conflict with the new router settings.
☑️ Verification after changing your password
It's recommended to immediately test the internet connection on all your main devices: TV, smartphones, and laptops. Make sure automatic connections occur without unnecessary requests and that the connection speed hasn't dropped.
Setting up guest access and filtering
ZTE terminals often feature a guest network feature. This is a separate WiFi signal with its own name and password, isolated from your main home network. You can configure it in the same section. WLAN, by selecting the tab Guest Network or Guest network.
You can set a time limit or limit the number of connected devices for the guest network. This is a useful feature for traffic control. The password for guests can be made simpler, but it's still recommended not to leave the network open (without a password), as this creates a security hole.
MAC address filtering is available in the advanced settings. You can create a "whitelist" of devices allowed to connect and block all others, even if they know the password. This feature is located in the "Secure" section. WLAN MAC Filter.
⚠️ Note: Enabling MAC address filtering requires manual registration of each new device. If you buy a new phone, it won't be able to connect to the WiFi until you add its MAC address to the router settings via an already connected device.
Using guest mode also allows you to hide your main network from prying eyes, leaving only the guest network visible. This increases privacy, as your main network's name won't be constantly broadcast.
Troubleshooting and diagnostics
Sometimes technical difficulties arise after changing a password. For example, the router may not accept the new password if it contains prohibited characters or is too short. The system may display a saving error or simply ignore the command. In such cases, try using only Latin letters and numbers.
Another common issue is the wireless module freezing. If, after changing the settings, the WiFi connection disappears completely (the WLAN indicator is off or the network search fails), try rebooting the router using the power button or by unplugging the power cord for 10 seconds.
If you can't access your router settings, check the IP address settings on your computer. They should be set to obtain automatically (DHCP). If a static address from a different subnet is specified, you will not see the login page.
The table below lists the main parameters to check if you are having connection problems after changing your password.
| Parameter | Recommended value | Possible problem |
|---|---|---|
| Encryption type | WPA2-PSK (AES) | Devices don't see the network or don't connect |
| Password length | 8-63 characters | Error saving settings |
| WiFi channel | Auto or 1, 6, 11 | Unstable speed, connection breaks |
| Channel width | 20/40 MHz | Slow speed on older devices |
If none of these methods help, the problem may be a hardware malfunction or firmware issue. In this case, you should contact your provider's technical support. Beltelecom specialists can perform remote line diagnostics and, if necessary, update the terminal configuration. ZTE MT PON AT 4 for my part.
Remember that regularly changing your password and updating your router firmware is key to the stable and secure operation of your home network. Don't ignore security system notifications about weak passwords, and avoid using the same access keys for different services.
What should I do if I forgot my new WiFi password?
If you changed your password and immediately forgot it, but need to connect urgently, the only quick way is to view it in your router settings. To do this, connect to the router via cable (you don't need your WiFi password), go to the web interface, and look for the WPA PreSharedKey field in the WLAN Security section. If you don't have a cable connection, you'll have to reset it using the Reset button.
Is it possible to change the password through the ByFly app?
Beltelecom's official mobile app (such as "My ByFly" or similar apps) allows you to manage some settings, including changing your WiFi password, without logging into the web interface. However, the app's functionality may be limited compared to the full browser version. If the app doesn't have the option you need, use the browser.
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, from WPA2 to WPA3 or vice versa) or the channel width, speed may change. Also, reconnecting all devices immediately after changing the password may create a short-term load on the router's processor.