.NET请求被中止：无法创建SSL/TLS安全通道

Question

我已经尝试了我遇到过的每个应该解决的问题，但似乎没有任何工作。下面是蒸馏水跟踪日志（一个试图说服贝宝，和其他为试图去跟GetSentry）：

System.Net Information: 0 : [10776] SecureChannel#49633458::.ctor(hostname=svcs.sandbox.paypal.com, #clientCertificates=0, encryptionPolicy=RequireEncryption) 
System.Net Information: 0 : [10776] SecureChannel#49633458 - Left with 0 client certificates to choose from. 
System.Net Information: 0 : [10776] Using the cached credential handle. 
System.Net Information: 0 : [10776] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = (null), targetName = svcs.sandbox.paypal.com, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation) 
System.Net Information: 0 : [10776] InitializeSecurityContext(In-Buffer length=0, Out-Buffer length=58, returned code=ContinueNeeded). 
System.Net Information: 0 : [10776] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = 69e8d930e0:cc64028eb0, targetName = svcs.sandbox.paypal.com, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation) 
System.Net Information: 0 : [10776] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=0, returned code=IllegalMessage). 
System.Net Error: 0 : [10776] Exception in HttpWebRequest#2657604:: - The request was aborted: Could not create SSL/TLS secure channel.. 
System.Net Error: 0 : [10776] Exception in HttpWebRequest#2657604::GetResponse - The request was aborted: Could not create SSL/TLS secure channel.. 

System.Net Information: 0 : [10776] SecureChannel#39602548::.ctor(hostname=app.getsentry.com, #clientCertificates=0, encryptionPolicy=RequireEncryption) 
System.Net Information: 0 : [10776] SecureChannel#39602548 - Left with 0 client certificates to choose from. 
System.Net Information: 0 : [10776] Using the cached credential handle. 
System.Net Information: 0 : [10776] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = (null), targetName = app.getsentry.com, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation) 
System.Net Information: 0 : [10776] InitializeSecurityContext(In-Buffer length=0, Out-Buffer length=58, returned code=ContinueNeeded). 
System.Net Information: 0 : [10776] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = 69e8d930e0:cc64029510, targetName = app.getsentry.com, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation) 
System.Net Information: 0 : [10776] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=0, returned code=IllegalMessage). 
System.Net Error: 0 : [10776] Exception in HttpWebRequest#49716141:: - The request was aborted: Could not create SSL/TLS secure channel.. 
System.Net Error: 0 : [10776] Exception in HttpWebRequest#49716141::GetResponse - The request was aborted: Could not create SSL/TLS secure channel.. 

我已经试过

ServicePointManager.ServerCertificateValidationCallback += 
       (sender, certificate, chain, sslPolicyErrors) => true; 

以及（的Application_Start全球.asax.cs）

ServicePointManager.Expect100Continue = true; 
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls; 

似乎没什么帮助。这是在MVC应用程序的Windows 8.1 Pro框中。

Answer 1

它看起来像我使用的SharpRaven库版本是强制ServicePointManager.SecurityProtocol SSL3，打破任何后续调用。新的库版本不会这样做，但是在执行我的调用之前，我仍然明确地将其设置为TLS，只是为了达到良好的效果。