小编ult*_*ool的帖子

我一直在使用我用来将图像上传到CloudFlare后面的网站的工具出现问题.此工具首先正常工作,并继续运行,除非请求之间有一个> 1小时的暂停.暂停后,下次连接尝试时会发生异常.

A first chance exception of type 'System.Net.WebException' occurred in System.dll
System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.
at System.Net.HttpWebRequest.GetResponse()

我尝试使用调试器来深入研究,但没有InnerException,并且在建立任何连接之前,似乎实际问题源自SChannel.这可以使用以下小程序轻松复制:

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("Initial connection attempt, this should succeed:");
        RunCFRequest();
        Console.WriteLine("Wait 70 minutes for next connection attempt...");
        Thread.Sleep(70*60*1000);
        Console.WriteLine("Second connection attempt, this one should reproduce the failure:");
        try
        {
            RunCFRequest();
        }
        catch (Exception exc)
        {
            Console.WriteLine(exc.ToString());
        }
        Console.WriteLine("Performing another connection attempt after failure to verify we continue working:");
        RunCFRequest(); …