Wifi problems

[Bivash508]

With my M21 phone it’s not showing WiFi 5G/ (802.11 ac) what should i do?

Please help.

[Wodehouse]

Reset WiFi settings and try again. Go to settings > About > Reset > Reset WiFi and Bluetooth settings.

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[AvishekG]

1. Use 2.4GHz Wi-Fi
Ensure your router broadcasts 2.4GHz — which your M21 can connect to.


2. Upgrade Your Phone (if 5GHz Wi-Fi is important)
Consider switching to a device with dual-band Wi-Fi support. Most midrange and higher-end phones released in the last 2–3 years support 802.11ac or even Wi-Fi 6.


3. Check Router Settings (optional):
If you're not seeing any Wi-Fi network:

Make sure the router is broadcasting SSID on the 2.4GHz band.

Some routers allow you to disable 2.4GHz manually — if that’s disabled, your M21 won’t see the network.

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[goodthings]

Please reset network setting of both Sim one by one and than reset all settings of your's device in general management settings also Flight ✈️ mode on n off one time also restart your's device without any Sim in slots also interchange Sim in slots also turn off power saving mode also optimize your's device in device care too also clear catche of all apps manually also reset wifi and Bluetooth settings too then try to it's again. If you like please accept as a solution it's help to others users also,click on 3dots in my reply section and click on accept solution. Thanks.

[goodthings]

Your's most welcome to here.

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We regret to hear about your experience with our product. Please believe that this is not a usual occurrence.

Please perform the below-mentioned troubleshooting steps, these may help in resolving your concern.

1. Make sure Wi-Fi is turned ON.
2. Check the router. You can try a simple isolation test with your Wi-Fi network by removing all other devices from the network and trying to add your mobile device first, before adding back in the rest of the devices normally connected.

Note: If you're having trouble with your router, or don't know your Wi-Fi network name & password; please contact your Internet Service Provider.

3. If you're having trouble with your router created by mobile, please allow all devices to connect and unhide the network.
Go to Settings >> Connections >> Mobile hotspot & Tethering >> Mobile hotspot >> More/three dots >> Allow device.
4. Unhide the network: - Go to Settings >> Connections >> Mobile hotspot & Tethering >> Mobile hotspot >> More/three dots >> Configure hotspot >> Uncheck hide my device.
5. Reset network settings: - Resetting the network settings will clear out anything potentially interfering with the network connectivity. This will reset all network settings, including those for:
• Wi-Fi information
• Mobile data information (which will be read from your SIM card and re-saved to the device automatically).
• Bluetooth connections.
Navigate to the app's screen and tap on Settings >> Tap on General Management >> Tap on Reset >> Tap on Reset Network Setting.
6.Check flight Mode
7. Turn off Power Saving Mode.
8. If the issue is still not been resolved, Reset the device:

IMPORTANT:
• Kindly create data backup of your device via SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite.
• Remember google password before resetting the device because it is required during initial setup.
• If you do not remember it, then reset, (Forgot password) your google account.
• For this:
• Open Gmail (https://accounts.google.com/servicelogin) > forgot password >Select ""try another way"" > Next > Enter a new password > Next.

Please follow the below steps to reset the device: Settings > General Management > Reset > Temporary cloud backup or External storage backup > tab on Factory data reset (This will erase all data, including files and downloaded apps).

If the issue persists, kindly report the problems with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on send feedback> Choose Composer> Select error report> select the appropriate issue category> Type your query and send.)

Warm Regards,
Samsung Customer Support"