How do I fixed "the underlying connection was closed: an unexpected error occurred on a send." error in webclient.openread() method in ASP.NET?

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C#

ASP.NET

I have a trouble I am trying to create asp.net log in with google. The problem occur in getting user data from google "The underlying connection was closed: An unexpected error occurred on a send.".It was fine locally but when I was published and uploaded to server that error was faced. Please help me...
Best Regard

What I have tried:

const int maxConnections = 1000; 
                ServicePointManager.DefaultConnectionLimit = maxConnections;
                const int maxIdleTimeout = 5000;
                ServicePointManager.MaxServicePointIdleTime = maxIdleTimeout;
                ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
                WebClient webClient = new WebClient();
                Stream stream = webClient.OpenRead("https://www.googleapis.com/oauth2/v1/userinfo?access_token=[AccessToken]");

                string b;

                using (StreamReader br = new StreamReader(stream))
                {
                    b = br.ReadToEnd();
                }