Step-by-step Wi-Fi setup on a ByFly modem: from logging into the control panel to network optimization

Setting up Wi-Fi on a modem from a Belarusian provider ByFly (Beltelecom) is a task every subscriber faces after connecting or resetting equipment. Even if you've never worked with network devices before, the process won't seem complicated: modern modems ByFly (For example, Sercomm H500s, Huawei HG8245H or ZTE ZXHN H268N) have an intuitive web interface. However, there are nuances that affect the stability and speed of the connection - depending on the choice Wi-Fi channel to security settings.

In this article, we will cover not only the basic setup (changing the network name and password), but also advanced options: how boost the signal, why a modem may slow down at 5 GHz, and what to do if devices won't connect to the network. All instructions apply to modem models that Beltelecom It will be released to subscribers in 2026. If you have an older firmware version, some menu items may differ—we will warn you about this separately.

For your convenience, we've broken the process down into steps: from logging into the control panel for the first time to fine-tuning. If you only need specific information (for example, how to change your password), use the table of contents below. If you're setting up your modem from scratch, follow the steps in order to avoid missing any important details.

1. Preparing for setup: what you'll need

Before you begin changing your Wi-Fi settings, make sure you have everything you need:

• 📋 Control Panel Login Details: usually it's an address 192.168.1.1, login admin and the password (indicated on the sticker on the back of the modem or in the contract).
• 💻 Tuning device: a laptop, tablet, or smartphone connected to the modem via a cable (recommended) or via your current Wi-Fi network.
• 📡 Modem model information: find it on the body (for example, Sercomm H500s). Available options depend on the model.
• ⚡ Backup power supply: If setup is interrupted due to a power outage, the modem may reset to factory settings.

If you are connecting to the modem for the first time, use network cable (It's included). This will eliminate authorization issues that sometimes occur when logging in via Wi-Fi. Also, check that the modem's indicator lights are lit. Power And Internet - If Internet If the light is blinking or not lit, first resolve the issue with your provider connection (this is a topic for a separate article).

⚠️ Attention: If the modem was purchased second-hand or was previously used by another subscriber, follow these steps: factory reset (button Reset on the back panel and hold for 10-15 seconds). This will delete old Wi-Fi settings and passwords.

2. Login to the modem control panel

To change Wi-Fi settings, you need to access the modem's web interface. To do this:

1. Open your browser (recommended) Google Chrome or Mozilla Firefox) and enter in the address bar 192.168.1.1 (less often - 192.168.0.1). Click Enter.
2. In the window that appears, enter your username and password. Standard data:
   • Login: admin or user
   • Password: admin, user or a unique code from the modem sticker (for example, WLAN1234).

If the data is not correct, try resetting the modem (see warning above) or check the password with support. Beltelecom.

After successful authorization, you will see the main page of the control panel. The interface may look different depending on your modem model:

• 🔧 Sercomm H500s: menu on the left, sections Basic (basic settings) and Advanced (extended).
• 📶 Huawei HG8245H: tabs at the top, section WLAN for Wi-Fi settings.
• 🖥️ ZTE ZXHN H268N: simplified interface with a button Wi-Fi Settings on the main page.

If the interface is in English and you don't speak the language, look for the section with the antenna icon (📶) or the word WirelessIn models for ByFly There is often a Russian version - switch the language in the upper right corner.

3. Basic Wi-Fi setup: network name and password

The first thing to do is change the network name (SSID) And set a strong passwordBy default, the network is called something like ByFly_XXXX or HUAWEI-XXXX, and the password is on the sticker. This information is easy to guess or hack, so it must be changed.

Instructions for most models:

1. Go to the section Wi-Fi (or Wireless → Basic Settings).
2. Find the fields:
   • SSID (or Network Name) - enter a new network name (for example, MyHomeWiFi_5G). Use Latin letters and numbers, avoid spaces.
   • Security Mode — choose WPA2-PSK (the safest option).
   • Password (or WPA Passphrase) - Create a password at least 8 characters long. We recommend a combination of uppercase and lowercase letters, numbers, and symbols (e.g., ByFly!2026_Kot).

Save changes (button Save, Apply or Submit).

After saving, the modem will reboot (this is normal). Connect to the new network with the updated name and password. If the devices don't see the network, check that Wi-Fi is enabled in the modem settings (check the box). Enable Wireless or switch ON/OFF).

Make sure Wi-Fi is enabled in your modem settings.

Reconnect all devices to the new network

Write down the new password in a safe place (not on the modem sticker!)

Check internet speed on different devices-->

4. Selecting a channel and frequency: how to boost the signal

If your Wi-Fi is slow or drops out intermittently, the problem may be congested channelIn apartment buildings, many networks operate on standard channels (e.g. 6 or 11), which creates interference. The solution is to choose less congested channel manually.

How to do it:

1. Go to the section Wi-Fi → Advanced Settings (or Wireless → Channel).
2. Find the parameter Channel (channel). The default is usually Auto.
3. Select the channel manually. For frequency 2.4 GHz We recommend channels 1, 6 or 11 (they do not intersect). For 5 GHz - any channel from the range 36–48 or 149–165 (depending on modem support).
4. Save the settings and reboot the modem.

To select the optimal channel, use Wi-Fi analysis applications (for example, Wi-Fi Analyzer for Android or NetSpot (for Windows). They will show which channels are occupied by neighboring networks.

Frequency	Recommended Channels	Peculiarities
2.4 GHz	1, 6, 11	Long range, but subject to interference from other devices (microwaves, Bluetooth).
5 GHz	36, 40, 44, 48, 149, 153, 157, 161	Less interference, high speed, but shorter signal range.
6 GHz (if supported)	Any (usually automatic selection)	Highest speed and minimal interference, but short range and not supported by all devices.

Important: If your modem supports both frequencies (2.4 and 5 GHz), configure them separately. For older devices (such as smart plugs or printers), leave the 2.4 GHz network, and for smartphones and laptops, use 5 GHz—this will reduce network congestion.

⚠️ Attention: Some channels (e.g., 100–140) on the 5 GHz band may be restricted in Belarus. If Wi-Fi stops working after selecting such a channel, return to automatic mode or select a channel from the permitted range (36–48 or 149–165).

5. Additional settings for stable operation

In addition to the network name and channel, the modem ByFly There are parameters that affect connection speed and reliability. Let's look at the most useful ones:

• 📶 Transmit Power: by default it is 100%, but if the modem is overheating, you can reduce it to 75%This will slightly reduce the coverage radius, but will extend the life of the device.
• 🔄 Operating mode (Wireless Mode): For maximum compatibility, please select 802.11 b/g/n (for 2.4 GHz) or 802.11 a/n/ac (for 5 GHz). If you have modern devices, you can leave only 802.11n/ac to increase speed.
• 🔒 MAC address filtering: Allows only authorized devices to connect to the network. Enabled in the section MAC Filter, but requires manual entry of addresses of all gadgets.
• ⏳ Wi-Fi Schedule: Useful if you want to automatically turn off the network at night. Configurable in the section Parent Control or Wi-Fi Timer.

One of the frequently asked questions is: is it worth turning on? WPS (quick connect button)? We recommend disable WPS, as this protocol has vulnerabilities and can be hacked. Use a standard password-based connection instead.

Another useful option is guest networkIt allows you to create a separate Wi-Fi network for visitors with limited access to local devices (such as printers or network drives). To set it up:

1. Go to the section Guest Network or Guest network.
2. Enable guest access and set a network name (e.g. MyHome_Guest).
3. Set a password and limit the speed (optional) Bandwidth Control), if necessary.
4. Save the settings.

Why do you need a guest network?

A guest network isolates visitors' devices from your main network, enhancing security. For example, if a guest connects to your Wi-Fi, they won't be able to access shared folders on your computer or control smart devices in your home. It's also convenient for temporary access—they don't need to disclose the password to your main network.

6. Troubleshooting: What to do if Wi-Fi isn't working

Even after proper setup, problems may arise. Here are some situations and solutions:

If none of the methods helped, do the following: full modem reset (button Reset (for 10-15 seconds) and configure it again. Also, check if your antivirus or firewall is blocking your network connection.

⚠️ Attention: If after resetting the modem does not connect to the Internet, the connection settings may be corrupted. Beltelecom (PPPoE or VLAN). In this case, please contact your provider's support team—recovering the connection yourself can be difficult.

7. Firmware update: when and how to do it

A modem's firmware is its "operating system," which is responsible for all its functions. Manufacturers periodically release updates that fix bugs and add new features. However, It is worth updating the firmware only in two cases:

• 🔧 If the current version has critical bugs (for example, the modem spontaneously reboots).
• 🛡️ If the update fixes security vulnerabilities (this is usually reported by the provider).

How to update firmware:

1. Go to the modem control panel.
2. Find the section System Tools, Administration or Software update.
3. Check your current firmware version and available updates. If a new version is available, download it from the official website. Beltelecom (do not use files from third-party resources!).
4. Download the firmware file via the web interface and wait for the process to complete (the modem will reboot).

Don't update firmware "just like that" This may cause problems if the new version contains errors. Also, do not interrupt the update process: if the modem is disconnected from power, it may become damaged.

8. Optimizing Wi-Fi for different tasks

Wi-Fi settings can be tailored to specific needs. Here are a few scenarios:

• 🎮 For online games:
  • Use frequency 5 GHz (less delays).
  • Turn on QoS (Quality of Service) in the modem settings and prioritize traffic for gaming devices.
  • Connect your PC or console via cable if possible.
• 📺 For video streaming (YouTube, Netflix):
  • Select the 5 GHz channel with the least load.
  • Disable other devices that consume traffic (torrents, updates).
  • If the modem supports MU-MIMO, enable this option to transfer data to multiple devices simultaneously.
• 🏠 For smart home (cameras, sensors):
  • Use the network 2.4 GHz - It penetrates walls better and is supported by most IoT devices.
  • Reserve IP addresses for critical devices (such as cameras) in the section DHCP Reservation.
  • Disable Wi-Fi power saving mode if devices lose connection.

If you have a large apartment or house, consider using Mesh systems or Wi-Fi repeaterModem from ByFly It can be connected to such systems, but setup requires a separate manual.

FAQ: Frequently asked questions about setting up Wi-Fi on ByFly

🔹 How do I find out the model of my ByFly modem?

The model is indicated on a sticker on the back or bottom of the modem. It can also be found in the web interface in the section System or Status.

🔹 Can I use my router instead of the ByFly modem?

Yes, but to do this you need to put the modem in Bridge mode and connect your router to it. The setup depends on the modem model—usually this is done in the WAN or InternetOnce you've switched to bridge mode, all Wi-Fi settings will be made on your router.

🔹 Why don't some devices connect after changing the password?

Old devices (such as printers or TVs) may retain old connection data. Delete the network ByFly_XXXX in the device settings and reconnect with a new password. If the device does not support modern encryption standards (for example, WPA2), try turning it on temporarily WPA+WPA2 in the modem settings.

🔹 How to increase Wi-Fi range?

Try the following methods:

• Change the location of the modem - place it in the center of the apartment, away from walls and metal objects.
• Install an external antenna (if the modem supports it).
• Use a Wi-Fi repeater or Mesh system.
• In the modem settings, increase the transmission power (Transmit Power) up to 100%.

🔹 What should I do if I forgot my modem control panel password?

The only way is to reset the modem to factory settings using the button Reset (hold it for 10-15 seconds). After the reset, the login data will become default (admin/admin or indicated on the sticker). Attention: This will also reset all Wi-Fi and internet connection settings!