cpanel database connection

Question

hi 

 

I am trying to establish mysql connection to my databse located in myserver with the following string :

MySqlConnection connection = new MySqlConnection("SERVER=my_server's_public_ip ;PORT=3306;DATABASE=name ;UID=user;PASSWORD=password");

it worked like a charm for a week and now i keep having ( can't connect to the specified host)

 

I didn't change anything

I can access phpmyadmin from my cpanel

I can ping my cpanel

 

please help