Wifi : couldn't authenticate connection!

[Sangam2001]

I am having trouble while connecting With a 5hz wifi router only on this note 10 lite , i have turned on 5hz in Hotspot also.. 

Same thing same network same setting workingg fin inmy galaxy m30 s 

So plzz fix it

[RαʝҽʂԋKυɱαɾ21]

RESET NETWORK SETTINGS
SETTINGS > GENERAL MANAGEMENT > RESET> RESET NETWORK SETTINGS

MAY THIS SOLVE YOUR PROBLEM !

[Samsung_Support2]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please perform the below mentioned steps to resolve the issue:

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

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support