It is impossible to imagine modern smartphones without access to high-speed Internet, and Samsung Galaxy M21 is no exception. This popular model, equipped with a powerful battery and high-quality screen, requires a stable connection for apps, navigation, and multimedia. Users often face the need to quickly set up a wireless network immediately after purchasing the device or after a factory reset.
The process of connecting to wireless network On devices with the One UI shell, the user experience is usually intuitive, but may have its own nuances depending on the operating system version. AndroidIn this article, we'll walk you through every step to set up your internet connection in just a few minutes. You'll learn not only the basic steps but also how to troubleshoot common connection issues.
Stability of work Wi-Fi module Directly impacts page loading speed and video call quality. Therefore, it's important to enter your access details correctly and select optimal frequency settings. Below is a comprehensive guide that is relevant for most users. Samsung M21.
Preparing for connection and checking equipment
Before you begin configuring the software, you need to make sure your hardware is working properly. Your router should be turned on and broadcasting a signal, and your smartphone should be working properly. Samsung M21 — have sufficient battery power. Often, problems arise because the router is frozen or too far from the access point.
Make sure you know the exact name of your network (SSID) and password. If you've recently changed your router settings, these may have been updated. It's also worth checking that MAC address filtering isn't enabled on your router, which could block new devices.
It is important to consider the frequency range supported by your provider. Samsung Galaxy M21 supports as standard 2.4 GHz, and faster 5 GHzIf your router is dual-band, your phone may see two networks with similar names, and choosing the right frequency can significantly impact speed.
Step-by-step instructions for activating Wi-Fi on the Samsung M21
To get started, you need to activate the corresponding module in your smartphone's system. This can be done in two ways: through the quick settings panel or through the main settings menu. Both methods achieve the same result, but the second option provides access to deeper configuration.
Let's look at the classic path through the settings, which is guaranteed to work on all firmware versions. One UI:
- 📱 Unlock your screen Samsung M21 and find the "Settings" icon (gear) on the home screen or in the application menu.
- 📡 In the list that opens, select "Connections," where all communication parameters are concentrated.
- 🔘 Click the switch next to the inscription Wi-Fito activate the search for available networks.
- 📋 Wait until your router's name appears in the list, and tap it to begin the pairing process.
☑️ Connection algorithm
After selecting the network, the system will ask you to enter a password. Be careful when entering the characters, as letter case It matters. For convenience, you can click the eye icon in the input field to see what you've typed and avoid mistakes.
Setting up frequency ranges and additional parameters
Device Samsung Galaxy M21 Equipped with a modern radio module capable of operating in multiple bands. By default, the phone automatically selects the best network, but in some cases manual intervention is required. For example, if the router broadcasts the same name for both 2.4 GHz and 5 GHz frequencies, the phone may become stuck on the slower frequency.
For advanced users, a mode is available Wi-Fi Direct and proxy server settings. These features are located in the advanced settings. To access them, click the gear icon next to the connected network name or select "Advanced" in the Wi-Fi menu.
What is the difference between 2.4 GHz and 5 GHz?
The 2.4 GHz band has a longer range and penetrates walls better, but is slower and often gets noisy from neighboring routers. The 5 GHz band offers high speed and stability, but has a shorter range and is less able to penetrate obstacles. Samsung M21 Near the router, 5 GHz is preferable.
If you are using a static IP address (which is rarely needed in a home environment), you will need to change your IP settings from DHCP on StaticIn this case, all address, gateway, and DNS fields must be filled in manually according to your provider's information.
You can also find your device's MAC address in this section, which may be needed to configure filtering on your router. Please note that in newer versions Android MAC address randomization is used to enhance privacy.
Solving common connection problems
Even if you enter the password correctly Samsung M21 Your computer may not connect to the internet or may continually lose connection. One common cause is an IP address conflict or a malfunction in the operating system's network services.
The table below lists the main symptoms of problems and how to resolve them:
| Symptom | Possible cause | Solution method |
|---|---|---|
| Obtaining IP address... | DHCP failure on the router | Restarting the router and phone |
| Saved, no internet | Incorrect date and time | Set automatic date in settings |
| Constant breaks | Interference or weak signal | Move closer to the router or change the channel |
| Authentication error | Incorrect password | Delete the network and re-enter the password |
⚠️ Note: If your phone keeps displaying "Obtaining IP address" for too long, try changing the IP type from DHCP to Static in the network settings (the gear icon next to the network name), and then back to DHCP. This often forces a refresh of the address request.
Another possible cause could be a third-party power-saving app or VPN client that's blocking traffic. Try temporarily disabling such programs. It's also worth checking if "Data Saver" mode is enabled in your connection settings.
Resetting network settings as a radical method
If standard methods do not help, and Samsung M21 If your Wi-Fi connection stubbornly refuses to work, you can reset your network settings. This will restore all connection settings to factory defaults but will not affect your personal files, photos, or contacts.
To perform a reset, go to the menu Settings → General settings → ResetSelect "Reset network settings." The system will warn you that saved Wi-Fi passwords, Bluetooth settings, and mobile network settings will be deleted.
After restarting your phone, you'll need to re-detect your network and enter the password. In most cases, this resolves wireless driver conflicts that have accumulated over time.
⚠️ Note: Resetting network settings may disable apps that use the internet for syncing. Make sure you remember the passwords for important accounts or have them saved in a password manager.
Wi-Fi Features on Different Android Versions
Model Samsung Galaxy M21 was originally supplied with Android 10, but has already received updates to Android 11 And Android 12 (depending on region). Interface One UI may change slightly by moving menu items, but the logic of operation remains the same.
Newer versions of the operating system include a "Smart Switch" feature that automatically switches between Wi-Fi and mobile data if the wireless signal becomes too weak. This option can be found in the advanced Wi-Fi settings.
Also worth mentioning is the feature Wi-Fi 6, however Samsung M21 supports the standard 802.11 a/b/g/n/acThis means it works great with modern routers, but won't be able to take advantage of the latest Wi-Fi 6 generation, although backward compatibility is guaranteed.
⚠️ Note: The menu interface and item names may vary depending on the firmware version and regional version of your device. If you can't find the item you're looking for, use the settings search (the magnifying glass at the top of the settings screen).
Regularly update your phone software via the menu Software Update → Download and Install Helps fix security vulnerabilities and bugs related to communication modules. It is recommended to keep the system up to date.
Frequently Asked Questions (FAQ)
Why can't my Samsung M21 see my Wi-Fi network, even though other devices do?
This can happen if the router is on a channel the phone doesn't support (for example, some 5 GHz channels), or if the network is hidden. Try restarting the router or manually adding the network by entering its name (SSID) in the "Add Network" menu.
How do I transfer a Wi-Fi password from another Samsung or iPhone?
On Samsung devices with One UI, you can use the "Share QR Code" feature. Tap the gear icon next to the connected network, then select the "Share" button or QR code. Point the camera Samsung M21 to this code, and the connection will occur automatically.
Does a phone case affect Wi-Fi reception?
Yes, if the case has a metal base or a metallized coating, it can shield the signal from the antenna, which in Samsung M21 located at the top or bottom of the case. Try removing the case and checking the signal strength.
What should I do if Wi-Fi turns on and then immediately turns off?
This may indicate a hardware failure or a serious software glitch. Try starting your phone in Safe Mode. If the problem persists, you may need to perform a hard reset or take it to a service center.