Connecting to a wireless network on smartphones Samsung It seems like a simple task—until you encounter errors like “Authentication failed” or “Saved, but no internet access.” Even if you’ve never set it up before Wi-Fi on Android, this instruction will help you figure it out: from the basic connection through the settings menu to alternative methods like WPS or scanning QR code.
We will consider not only the standard algorithm, but also the nuances for different versions. One UI (from Samsung Galaxy S8 to the latest Galaxy S24), and we'll also explain why a phone can "see" a network but not connect to it. If your router uses non-standard security settings (for example, WPA3-Enterprise), you will find here a solution for this case.
Be warned in advance: if you are trying to connect to public network (in a cafe, airport, or hotel), additional authorization through a browser may be required—we'll discuss this below.
1. Standard Wi-Fi connection via settings
This is the most universal method that works on all models. Samsung - from budget Galaxy A14 to the flagship Galaxy Z Fold 5The algorithm has remained virtually unchanged since its release. One UI 2.0, but we will point out the key differences between the old and new versions.
To connect:
- Open Settings (gear icon in the application menu or notification shade).
- Go to the section
Connections(on some models -Network and Internet). - Select
Wi-Fiand activate the switch in the upper right corner. - In the list of available networks, tap on the name of your network.
- Enter the password (if the network is secured) and click
Connect.
If everything went well, an icon will appear next to the network name. check marks, and in the status bar there is a signal strength indicator. On One UI 5.0 and newer, after connecting, the system may offer to estimate the network speed - this is optional.
Does the network name (SSID) match the one on the router?
Is the password entered correctly (case sensitive!)?
Is Wi-Fi enabled on the router (the indicator should be on)?
Are there any MAC address restrictions in the router settings?
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Note for owners of older models (Galaxy S7, Note 8 and earlier): on Android 8.0 Oreo and below the path to the settings may differ. For example, instead of Connections need to look Wi-Fi directly in the main settings menu.
2. Connecting via WPS: When you don't need to enter a password
Function WPS (Wi-Fi Protected Setup) allows you to connect to your router without entering a password—just press a button on the router. This is convenient if you don't know the current password or it's too complex. However, Not all routers support WPS., and on some models Samsung This option is hidden.
How to connect via WPS:
- Open
Settings → Connections → Wi-Fi. - Tap on the three dots (
⋮) in the upper right corner and selectAdditionally(orAdvanced settings). - Find the item
WPS(on some firmware versions -Connection via WPS). - Click
Beginand within 2 minutes activate WPS on the router (usually the button with the inscriptionWPSor icon two arrows).
If the buttons WPS If it's not in the menu, it means it's your model. Samsung does not support this method, or the function is disabled in the firmware. An alternative is to use QR code (more on this in the next section).
By entering the password in the settings
Via WPS (button on the router)
Via QR code
Another way
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⚠️ Attention: The WPS feature is considered less secure than traditional password entry. If your router supports WPA3, we recommend using it instead of WPS.
3. Connection via QR code: fast and error-free
Many modern routers (for example, TP-Link Archer AX6000 or ASUS RT-AX88U) allow you to generate QR code with your login details. This is useful if your password is long or contains special characters. Samsung With One UI 3.1 and newer ones have a built-in scanner for such cases.
Instructions:
- Find
QR codeon the router sticker or generate it in the router's web interface (usually in the sectionWi-FiorWireless network). - Open it on your phone
Settings → Connections → Wi-Fi. - Tap on the icon
QR code(or selectAdd network → QR code). - Point the camera at the code and the connection will occur automatically.
If the scanner does not find the code, check:
- 🔦 Is there sufficient lighting (the camera should clearly “see” the code).
- 📱 Does the case cover the phone's camera?
- 🔄 Restart your phone if the scanner freezes.
Note: On some models Samsung (For example, Galaxy A52) The QR scanner for Wi-Fi may be hidden in the menu Google LensIn this case, open Google Photos, click on the icon Lens and point the camera at the code.
4. Connect to a hidden Wi-Fi network
Some networks do not broadcast their name (SSID) - they are not visible in the general list. This is often used in offices or for increased security. To connect to such a network Samsung:
Steps:
- Open
Settings → Connections → Wi-Fi. - Tap on
Add a network(orOther networks). - Enter the exact name of the network (case sensitive!).
- Select the security type (
WPA2/WPA3or another, depending on the router settings). - Enter the password and save.
If you don't know the security type, check your router settings (usually it's WPA2-PSK or WPA3-PSK). On Samsung With One UI 4.0 and newer, when connecting to a hidden network, a warning about possible roaming issues may appear - this can be ignored.
⚠️ Attention: If the internet doesn't work after connecting to a hidden network, check if the router is blocking devicesMAC addressOn . Samsung it can be found inSettings → About phone → Status information → Wi-Fi address.
5. Troubleshooting common connection errors
Even if you did everything right, Samsung may show an error. Let's look at the most common cases and how to fix them.
| Error | Possible cause | Solution |
|---|---|---|
Authentication failed |
Incorrect password or security type | Check your password (case-sensitive!). If that doesn't help, change the security type on your router. WPA3 on WPA2. |
Saved, but without internet |
Problems with DHCP or MAC filtering | Restart your router. If that doesn't help, manually set the IP address in the network settings (Wi-Fi Settings → Advanced → IP Settings). |
Failed to obtain IP address |
IP conflict or DHCP failure | In the network settings, set a static IP (for example, 192.168.1.100) or reboot the router. |
Weak signal |
Long distance to the router or interference | Try changing the Wi-Fi channel on your router (for example, from car on 6 or 11). |
If none of the methods helped, try reset network settings on the phone:
- Open
Settings → General Management → Reset. - Select
Reset network settings. - Confirm the action (password or PIN may be required).
Samsung phones with an Exynos chip (such as the European Galaxy S22) sometimes experience issues connecting to 5 GHz networks. If this occurs, force the router to use the 2.4 GHz band in its settings.
6. Connecting to public networks (in cafes, airports, hotels)
Public networks often require additional authorization through a browser. Even if Samsung shows that you are connected, the Internet may not work until you register.
How to connect:
- Connect to a network (eg.
Free_WiFi_Cafe). - Open any browser (Chrome, Samsung Internet).
- You should see the authorization page. If you don't see it, try manually going to the address.
1.1.1.1orneverssl.com. - Enter your details (phone number, email, or password from the receipt) and confirm.
If the page does not open:
- 🔄 Reconnect to the network, having previously “forgotten” it (
Wi-Fi Settings → Network Name → Forget). - 📱 Check if it's blocking VPN or firewall access (disable them temporarily).
- ⚙️ Make sure the network settings box is unchecked
Avoid bad connections(One UI 5.0+).
7. Additional Wi-Fi settings on Samsung
Once connected, you can optimize your network performance. For example, enable automatic switching between 2.4 GHz and 5 GHz or limit background mobile data usage.
Useful options:
- 🔄 Smart Wi-Fi Switching (
Settings → Connections → Wi-Fi → ⋮ → Advanced settings → Smart switching) - automatic switch to mobile network when the signal is weak. - 📊 Wi-Fi power saving mode — disables Wi-Fi in sleep mode (saves battery, but may interrupt downloads).
- 🔒 MAC randomization (One UI 4.0+) - hides the real MAC address of the device to increase privacy.
On Samsung Galaxy S23 Ultra and newer there is a function Wi-Fi 6E, which allows you to connect to networks at a frequency 6 GHzTo activate it:
- Open
Settings → Connections → Wi-Fi → ⋮ → Advanced settings. - Enable the option
Wi-Fi 6E(if the router supports this standard).
⚠️ Attention: Settings may vary depending on your region and firmware version. For example, in some countries, the 6 GHz frequency is prohibited by regulators, and the option Wi-Fi 6E will be hidden.
8. What to do if Wi-Fi keeps disconnecting
If Samsung If the connection randomly drops, the problem could be with either the phone or the router. Check the following:
On the phone:
- 🔋 Turn off power saving mode for Wi-Fi (
Settings → Device Maintenance → Battery → Power Saving Mode → Settings → Disable for Wi-Fi). - 🔄 Update the firmware (
Settings → Software Update). - 📱 Reset network settings (see section 5).
On the router:
- 🔄 Reboot it (turn it off for 30 seconds).
- 📶 Change Wi-Fi channel from
carto a fixed one (for example,6for 2.4 GHz). - 🔒 Disable the feature
Band Steering(if it is enabled) as it may cause problems with Samsung.
Why does Samsung lose Wi-Fi connection at night?
Some firmware versions have an "Adaptive Battery Saving" feature enabled, which turns off Wi-Fi during periods of inactivity (usually between 1:00 AM and 6:00 AM). To disable it:
1. Go to Settings → Device Care → Battery → More → Adaptive Battery Saving.
2. Disable the option or add Wi-Fi to the exceptions.
If the problem persists, try connecting to a different network (such as a mobile hotspot). If there are still disconnects, the device may be faulty. Wi-Fi module phone - in this case, contact the service center.
FAQ: Frequently asked questions about Wi-Fi on Samsung devices
My Samsung isn't detecting the 5 GHz network. What should I do?
Check:
- Does your model support
5 GHz(on budget phones like Galaxy A03 it can only be2.4 GHz). - Is support enabled on the router?
5 GHz(sometimes it is disabled by default). - Is there a country restriction in the router settings (for example, some channels
5 GHzbanned in Russia).
If the phone supports 5 GHz, but does not see the network, try manually setting the channel on the router (for example, 36 or 44).
How to connect to Wi-Fi without a password if you forgot it?
There are several ways:
- Use
WPS(if the router supports it). - Look at the password on the router sticker (usually indicated under
Wi-Fi KeyorPassword). - Connect to the router via cable and look at the password in the web interface (
192.168.1.1or192.168.0.1). - Reset the router to factory settings (button
Reseton the back panel).
If the router is rented from a provider, the password may be specified in the contract or personal account.
Why does my Samsung connect to Wi-Fi but websites won't open?
Possible reasons:
- 🌐 DNS issues: try manually entering Google's DNS (
8.8.8.8And8.8.4.4) in the network settings. - 🔒 MAC blocking: Check if your phone is blacklisted on your router.
- 📡 DHCP failure: Assign a static IP in the Wi-Fi settings on your phone.
- 🛡️ VPN or antivirus: Disable them temporarily.
If all else fails, check if the internet works on other devices. If so, the problem is with your phone; if not, the problem is with your router or ISP.
Is it possible to connect to Wi-Fi without a SIM card?
Yes, No SIM card required to connect to Wi-Fi. All modern smartphones Samsung (including models without cellular support, such as Galaxy Tab) can connect to wireless networks regardless of the presence of a SIM card.
Exception: If the network requires SMS authorization (for example, in some hotels), you will not be able to receive a confirmation code without a SIM card.
How to share Wi-Fi from a Samsung to another phone?
To do this, turn on access point:
- Open
Settings → Connections → Mobile hotspot & tethering. - Select
Mobile hotspot. - Set up a network name (
SSID) and password. - Activate the access point.
On One UI 5.0+ You can limit the number of connected devices and enable an automatic shutdown timer.