Wi-Fi connection problem

[abhi0612]

hi guys I have using  c7 pro  handsets , an I have another  handset of c7 pro  . from some pass day I getting trouble for Wi-Fi connection in both handset .but in another handset  the Wi-Fi connection is connected and I have this same problem in m30s also please fix this bug of it

first is my IMEI NUMBER 

Second is m30s mobile 

thirt is  c7 pro 

[Samsung_Support3]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please perform the below mentioned steps to resolve the issue:

1) 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.

2) Reset Network Settings: Go to apps screen >Settings >General Management >Reset >Reset Network Setting.

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