In the age of ubiquitous digital connectivity, stable and secure internet access is becoming critical for every user. Provider Beltelecom, which provides fiber-optic services (FTTB/GPON), uses various models of terminal equipment, the configuration of which may vary. Changing your WiFi ByFly password is not just a formality, but a necessary measure to protect your personal traffic from unauthorized access.
Many subscribers encounter difficulties when attempting to change the default security data set by the manufacturer or installation technician. Standard labels on the device often contain information that is known to too few people, creating vulnerabilities. In this article, we will detail the process of changing the encryption key for various router models used in fiber optic networks.
You'll learn how to properly log into the web interface, what settings need to be changed for maximum security, and what to do if the default path isn't working. We'll cover the specifics of the equipment from Huawei, ZTE And Eltex, which are most often installed by the provider. Correct configuration WPA2-PSK or newer WPA3 standard will become a reliable shield for your home network.
Preparing to change security settings
Before making any changes to your router's configuration, ensure your device is properly connected to the network. To complete the setup process, you'll need a computer, laptop, or smartphone connected to the router either via a cable or wirelessly. It's important to understand that changing wireless settings will temporarily disable all Wi-Fi-connected devices.
Make sure you have physical access to the device, as there is often a button on the back. WPS/Reset and a sticker with factory data. If you plan to change settings from your phone, it's best to download a browser in advance or ensure your mobile internet connection is stable in case of a reset. It's also recommended to write down your current settings so you can quickly restore them if an error occurs.
To access the control panel, you will need the default gateway address. In networks Beltelecom this is most often 192.168.1.1 or 192.168.0.1The login and password for authorization in the router itself (not to be confused with the WiFi password) are also indicated on the sticker, but the standard pair for many models is admin / admin.
⚠️ Note: If you change wireless network settings from a device connected via WiFi, you will lose connection immediately after applying the changes. To continue using the network, you will need to reconnect with the new password.
Logging into the ByFly router web interface
The control panel authorization process is the first and most important step. Open any modern browser (Chrome, Firefox, Opera) and enter your gateway's IP address in the address bar. If the default address 192.168.1.1 If it doesn't open, check your computer's network card settings. To do this, you can enter the following command in the Windows command line: ipconfig and find the line "Default gateway".
After entering the address, the system will ask for a login and password. In fiber optic equipment, login information is often unique to each device and printed on a label on the bottom of the housing. Look for the fields User And Password or Username And PwdOlder models or reflashed devices may use standard bundles such as root / admin or admin / 1234.
If you can't log in, your password may have been changed previously. In this case, you'll need to reset your device to factory settings. To do this, locate the recessed hole. Reset On the back panel, turn on the router and press it with a paperclip for 10-15 seconds until the indicators blink simultaneously. After rebooting, use the information on the sticker.
What should I do if I forgot my web interface password?
If the control panel password has been changed and forgotten, the only way to regain access is to perform a hard reset. This will erase all user settings, including PPPoE internet connection settings. Make sure you know your internet service login and password (contract) so you can reconfigure your connection after the reset.
Setting up WiFi on Huawei routers (HG8245H, HG8245Q)
Company equipment Huawei is one of the most common devices in GPON networks. The interface of these devices may differ depending on the firmware version, but the logic remains the same. After successful authorization, go to the tab in the top menu. WLANHere you will find several sub-items, among which we are interested in WLAN Basic Configuration or 2.4G Basic Network Settings.
In the window that opens, find the field WPA PreSharedKey or WPA/WPA2 PassphraseThis is where you enter your new password. It's recommended to use a combination of upper- and lower-case letters and numbers, at least 8 characters long. Avoid obvious combinations like your date of birth or phone number. You can also change the network name (SSID) here to identify your access point in an apartment building.
Pay attention to the parameter Authentication TypeFor maximum compatibility and security, select the mode WPA2-PSK with encryption algorithm AESAvoid using an outdated standard. WEP, as it can be hacked in a few minutes using special utilities. After entering the data, click the button Apply or Save at the bottom of the page.
☑️ Check Huawei settings
Changing the password on ZTE and Eltex devices
Routers ZTE (for example, models F660, F670) and Eltex (NTU-2W) have their own interface, which may seem more complicated for a beginner. In the devices ZTE you need to go to the tab Network, then select WLAN and further SecurityHere in the field WPA Passphrase A new access key is entered. It is important to save the changes by clicking the button Submit or Apply.
In terminals Eltex The navigation looks different: select the menu Wi-Fi in the sidebar, then The main thing. In the security section (Security Mode) make sure the type is selected WPA2-PSKThe password entry field may be called WPA key or PasswordAfter changing the data, don't forget to click the save button, which is often located at the very bottom of the page.
Fiber optic terminals have two frequency bands: 2.4 GHz and 5 GHz. If your router supports dual-band, you'll need to set a password for each frequency separately unless they're combined into a single network. Make sure you don't mix up the settings, otherwise devices that only support 2.4 GHz may not connect to the 5 GHz network.
Table of standard ByFly addresses and passwords
To help you find login details for different equipment models, we've compiled a summary table. Please note that providers may change settings for new equipment, so the information on the label on your device always takes precedence.
| Router model | IP address | Login | Password |
|---|---|---|---|
| Huawei HG8245H | 192.168.100.1 | root | admin |
| ZTE F660 / F670 | 192.168.1.1 | admin | admin (or from the sticker) |
| Eltex NTU-2W | 192.168.0.1 | admin | admin |
| Sercomm | 192.168.1.1 | admin | admin |
Using the table allows you to quickly find your way around if the label on the router case is worn off or difficult to read. However, if the default combinations don't work, the only sure solution is a reset. Remember that after a reset, the router will return to the factory settings specified in this table or on the label.
In some cases, your ISP may use custom firmware that changes the default IP address. If none of the addresses in the table work, try checking the gateway address in your computer's network settings. This will be the most accurate way to determine the device's current address.
Recommendations for creating a strong password
The security of your network directly depends on the complexity of the password you choose. Simple combinations like 12345678 or password They are automatically generated by programs in seconds. The ideal password should contain at least 12 characters and include uppercase and lowercase letters, numbers, and special characters.
Avoid using personal information that's easy to guess or find on social media: pet names, birthdays, phone numbers. A good practice is to use mnemonic phrases—take the first word of a favorite song or quote and replace the letters with similar numbers or symbols. For example, the phrase "My cat likes fish at 5 a.m." could become MkLr_v5U!.
⚠️ Caution: Never store your WiFi password in a text file on your computer desktop labeled "Passwords." If an attacker gains access to your PC, they will easily find this information. Use a password manager.
Possible problems and their solutions
After changing the password, your device may not connect to the network. First, check if MAC address filtering is enabled. If it is, even with the correct password, a new device (or a device with a changed MAC address) will not be able to access the network. In this case, you should either disable filtering or whitelist your device's MAC address.
Another common issue is caching old settings in the operating system. Your computer or phone may try to connect using a previously saved password. The solution is simple: find your network in the list of available networks, select "Forget Network" or "Delete Profile," and then reconnect using the new key.
If the router interface is unresponsive or settings are not saved, the device may be overloaded or have a software issue. Try rebooting the router through the web interface (System Tools → Reboot) or physically turning off the power for 10 seconds. In rare cases, updating the firmware to the latest version from the manufacturer's official website helps.
⚠️ Note: Interfaces and menus may vary depending on the software version installed by your provider. If you don't see the described options, search for similar names or contact technical support.
Why doesn't the router save the new password?
A common cause is a full configuration memory or a corrupted file system. Try a factory reset and reconfiguring the router. If the problem persists, the device may be faulty and needs to be replaced.
Frequently Asked Questions (FAQ)
Is it possible to change the password for WiFi ByFly using the app on my phone?
Beltelecom doesn't have an official app for advanced router configuration (like changing the WiFi password) for most models. Some modern routers support management via the manufacturer's universal apps (for example, Huawei AI Life or ZTE Home), but they only work if the router isn't blocked by your ISP for third-party software. It's more reliable to use the web interface via a browser.
What should I do if I lose internet access after changing my password?
Changing your WiFi password shouldn't affect your internet connection. If you lose internet, check the router's indicator lights. Is the indicator light on? PON or OpticalIf it's blinking or off, there's a problem with your ISP line. If it's on, your PPPoE settings (internet login and password) may be corrupted if you accidentally touched the WAN or Internet tab when changing your WiFi password.
How do I know who is connected to my WiFi?
In the router's web interface, find the section Status, Device Info or Associated DevicesA list of all connected clients and their MAC addresses is displayed there. If you see an unfamiliar device, immediately change the password and enable MAC address filtering to block the intruder.
Should I change my password regularly?
From a security perspective, changing your password regularly (every 3-6 months) is a good practice, especially if you have many guests. However, if you set a complex, unique password and disable WPS, the need for frequent changes is reduced. The key is to avoid using simple combinations.