WiFi lag in S21 FE 5G

[shaq24]

My S21 FE has a major issue. The wifi lags a lot. At first I thought there is a problem with my WiFi router but then I checked with my other phone which is a Xiaomi Poco F1 and there was absolutely no lag in the other phone.

When I send a text in WhatsApp, there is a delay of about 4-5 seconds before a text is sent or even a text is received. Same with Instagram and other platforms. 

Does anyone know how to solve this issue? Or is it a bug that will be fixed in the coming updates?

The mobile data works fine, only the wifi has a lag issue.

[TechiePradhumn]

Try these settings.

https://r2.community.samsung.com/t5/Tech-Talk/Troubleshooting-Steps-For-Cellular-Network/td-p/136718...

[shaq24]

This doesn't solve my problem

[TechiePradhumn]

Check with reset network settings.

[Arigh]

Facing same issue...dont know the solution.sometime have to change to mobile data to send or receive..

[shaq24]

Yes, very frustrating

[alienatta]

No this isn't wifi router issue nor issue with the wifi modem in phone.
Its issue is with whatsapp for samsung.

[shaq24]

Oh I see

[cs_member10]

Dear Samsung member,

Greetings from Samsung customer support.

We acknowledge your query and apologize for the inconvenience caused to you and will surely assist you regarding the same. And please follow the easy troubleshooting steps which might help to solve the issue.

Note: Any prompt that says "Authentication Error" is related to an incorrect password. Please contact your Internet Service Provider for assistance regarding changing your Wi-Fi network password.

1: Settings >> Connections >> Wi-Fi >> W-Fi network >> Tap and hold the Wi-Fi network that you're having trouble with until the menu allows you to select Forget Network.

2: Reset Network Settings: Setting >> General Management >> Reset >> Reset Network Setting.

3: Restart the Router and Mobile Device. Switch off your Router (at the wall or with the power button on the router) and wait for 2-3 minutes before switching it on. While you're waiting, press the Power button on your mobile device and select Restart.

Once the router has been successfully connected to the internet again, try to connect to your network on your mobile device.

Make sure there is no interference between the router and your mobile device. Concrete walls, fridges, and microwaves can all interrupt the Wi-Fi signal.

4: Disable flight mode. Find the Airplane/Flight mode option and turn it off.

In case the issue still occurs. Please register your concern in Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Thank you for writing to us.
Warm Regards,
Samsung Customer Support.