Slow internet speeds and constant connection drops often indicate that uninvited guests have connected to your wireless network. In the case of Beltelecom (Byfly), the situation is complicated by the fact that the provider often provides equipment from different manufacturers, and the standard interface may differ. However, the principle for detecting subscribers is the same for all devices: log in to the router's admin panel and review the list of active clients.
In this article, we'll detail the steps for the most popular router models installed in GPON and xDSL networks. You'll learn how to distinguish your devices from others, change security keys, and configure MAC address filtering to permanently block unauthorized access. Traffic control — this is not just a way to restore speed, but also to protect your personal data from theft.
Before you begin setting up your system, it's important to understand that default passwords set by the factory or the installer are often publicly accessible. That's why Wi-Fi network becomes vulnerable to automated key guessing by neighbors or hackers. Regularly checking the list of connected devices should become a habit for every modern user.
Accessing Beltelecom router settings
The first step toward securing your home network is logging into your router's web interface. To do this, the device you're using to run diagnostics (laptop or smartphone) must be connected to the router via cable or Wi-Fi. Open any browser and enter the gateway's IP address in the address bar. This is most often the case for Beltelecom equipment. 192.168.1.1 or 192.168.0.1.
After navigating to the address, the system will ask for your username and password. If you've never changed these details, they may be listed on a sticker on the bottom of the device. For ZTE and Huawei routers, which are widely distributed by the provider, the default pair is often admin / admin or admin / 1234In some cases, especially on GPON terminals, the password may be unique and printed on a label next to the "User Password" label.
If the default combinations don't work and you haven't changed them, the equipment may have been reflashed by a technician. In this case, a full factory reset (press the Reset button on the device) will help, but this will require reconfiguring the internet from scratch. Make sure you have a contract with your provider or PPPoE/VLAN information before doing this. Reset settings — an extreme measure when other entry methods have been exhausted.
Analyzing the list of connected devices
After successfully logging into the control panel, you need to find the section responsible for your wireless network status. While interfaces vary greatly between models, the logic remains the same. Look for tabs with names like "Status," "Wireless," "WLAN," or "Network." Within these sections, look for subsections such as "Associated Stations," "Client List," or "DHCP Clients."
In the list that opens, you'll see a table with the devices currently consuming your data. Each client is displayed with a set of technical parameters. To identify which is which, pay attention to the MAC address and hostname. The hostname often contains the brand name (e.g., "iPhone-Ivan," "Samsung-TV," "Xiaomi-Robot"), which helps identify the device.
If you see a device labeled "Unknown" or with a strange alphanumeric code, don't panic. It could be your smart kettle, console, or laptop with the screen off. The best way to check is to temporarily disable Wi-Fi on all your devices and see if the suspicious string disappears from the list. If the string remains, that's it. outside user.
Identification of your own and other people's gadgets
The most difficult part of the process is understanding what device is behind the MAC address. Network card manufacturers have unique prefixes (the first six characters of the address) that can be used to identify the brand. For example, addresses starting with A4:5E:60, often belong to Apple devices, and 00:1A:2B may point to Huawei. However, modern smartphones often use MAC address randomization to protect privacy, which complicates the issue.
For accurate identification, make a complete list of all the appliances in your home. Include not only phones and computers, but also smart lamps, speakers, game consoles, and even Wi-Fi-enabled washing machines. Compare the number of devices listed on your router with your physical list. A difference of even one unit is a warning sign.
Pay attention to data transfer activity. In advanced router interfaces (for example, in the menu Statistics or Traffic Monitor) you can see how much traffic each client is consuming right now. If an "unknown" device is downloading gigabytes while you're simply reading text, there's no doubt the network has been hacked. A constant high load from an unknown client is the main sign of mining or third-party file downloading.
Below is a table for quick reference of device types based on their characteristics in the client list:
| Feature in the list | Probable device | Action |
|---|---|---|
| Name contains "PC", "Notebook" | Computer or laptop | Check your devices |
| Name: "Android", "Galaxy", "MI" | Smartphone or tablet | Check against the list of family members |
| Unknown / Null / Blank | Hidden device or IoT | Check by MAC address |
| Name "IPTV", "Box" | TV set-top box | Normal for Beltelecom |
Blocking uninvited guests with a MAC filter
The most reliable way to secure your network is to use a MAC address whitelist. Unlike simply changing your password, this method ensures that even with your security key, an intruder won't be able to connect unless their unique identifier is on the allowed list.
To configure, find the section in the router menu Wireless -> MAC Filter or Access ControlYou need to switch the filtering mode to "Allow" or "Whitelist." Then manually add the MAC addresses of all your trusted devices. Once this mode is enabled, the router will ignore any connection requests from devices not in the database.
This method requires time for initial setup, as each device must be added individually. However, it provides the highest level of security. If you buy a new phone, you'll have to go back into the router settings and add its address to the list. It's a small price to pay for peace of mind.
☑️ Network security check
Changing your password and encryption settings
If you've discovered an intruder, the first thing you need to do is change your wireless network password. Find the section WLAN or Wireless SecurityIn the field Pre-Shared Key or WPA Passphrase Enter a new, complex password. It must contain at least 12 characters, including uppercase and lowercase letters, numbers, and special characters.
It is critical to choose the right encryption algorithm. In the list of security methods (Security Mode or Authentication Type) select WPA2-PSK (AES) or WPA3, if your equipment supports this standard. It is strongly recommended not to use the outdated WEP or WPA (TKIP) protocols, as they can be cracked in minutes using specialized utilities.
⚠️ Note: After changing your password, all your devices will automatically disconnect from the network. You will need to reconnect each smartphone, TV, and laptop using the new access key.
Also check if WPS is enabled. On Beltelecom routers, it's often enabled by default. WPS allows you to connect using a PIN code or a push-button, but this protocol is vulnerable. It's recommended to check for this option. Enable WPS and move it into position Disable or Off.
Why is WPS dangerous?
The WPS protocol uses an 8-digit PIN code, which can be brute-forced in a few hours. An attacker doesn't even need to know your main WiFi password; just guessing this code is enough.
Setting up a guest network for visitors
If you frequently have friends or family members over who ask for your WiFi password, it's best not to give them access to your main network. Create a guest profile (Guest Network). This is a virtual router inside a physical one, which has its own separate password and, most importantly, is isolated from your personal devices.
A guest network allows you to limit speed and access time. You can set a traffic limit or restrict connections to specific hours. Even if guests share the password with neighbors, your main network with computers, NAS storage, and smart home devices will remain secure.
To activate, find the tab Guest Network In the WLAN menu, enter a network name (SSID), such as "Home_Guest," create a password, and click "Apply." You now have two communication channels: one for your family and one for external users.
Frequently Asked Questions (FAQ)
What should I do if I can't access my router settings?
Try connecting to the router via cable instead of Wi-Fi. Make sure the IP address in your browser is entered correctly. If you've forgotten your password, pressing the Reset button for 10-15 seconds will help, but you'll have to reset your internet settings again (you'll need the login and password from your contract).
Can a neighbor steal my internet if I change my password?
If the password is complex and WPA2/WPA3 encryption is used, brute-forcing it is virtually impossible. However, if a neighbor has access to your home, they might be able to press the WPS button on the router. Therefore, it's best to disable WPS.
Does the number of connected devices affect the speed?
Yes, the bandwidth is shared among all users. If someone is watching a 4K video, everyone else's speed will drop. Furthermore, a large number of active connections can overload the processor of an inexpensive router, causing lag.
How often should I change my WiFi password?
Security experts recommend changing your password every three to six months. If you notice a sudden drop in speed or unusual network behavior, you should change your password immediately.