An existing connection was forcibly closed by the remote host

[nu]

Hello.

I'm trying to fix my test requests. For now when I'm sending a request to the 'https://apitest.authorize.net/xml/v1/request.api' I'm getting an exception.

[SocketException (0x2746): An existing connection was forcibly closed by the remote host]

 TLS 1.2 is enabled, Windows Server 2008 r2. Any suggestions please?

Thanks!

[NexusSoftware]

Try adding the following to your application in order to see what version of TLS your schannel.dll is using:

var response = WebRequest.Create("https://www.howsmyssl.com/a/check").GetResponse();
var responseData = new StreamReader(response.GetResponseStream()).ReadToEnd();
Response.WriteLine(responseData);

If < TLS 1.2 add the following at the beginning of the function where you make a webrequest:

System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

[nu]

 Thank you @NexusSoftware!

Now I'm getting "

The client and server cannot communicate, because they do not possess a common algorithm

" error.

I think the reason is that I have a website running on ASP.NET 2,0 & .Net 2.0 so I should upgrade them too ASAP.

[NexusSoftware]

Yes, .Net version 4.6 supports TLS 1.2 by default. Version 4.5 can be set to use TLS 1.2 using the above mentioned  technique.

[se12sha]

I have been getting the same error over the last couple of days when i try sending transaction request in SANDBOX environment.

I tried with all the required configurations as per the solution(s) suggested in the developer blogs but i can't get reid of this error.

Error Details:

System.Net.WebException was unhandled

  HResult=-2146233079

  Message=The underlying connection was closed: An unexpected error occurred on a send.

  Source=System

  StackTrace:

       at System.Net.HttpWebRequest.GetResponse()

       at AuthorizeNet.Util.HttpUtility.PostData[TQ,TS](Environment env, TQ request)

       at AuthorizeNet.Api.Controllers.Bases.ApiOperationBase`2.Execute(Environment environment)

       at net.authorize.sample.ChargeCreditCard.Run(String ApiLoginID, String ApiTransactionKey, Decimal amount) in c:\Users\seshag\Documents\Collectors\sample-code-csharp-master\sample-code-csharp-master\PaymentTransactions\ChargeCreditCard.cs:line 68

       at net.authorize.sample.SampleCode.RunMethod(String methodName) in c:\Users\seshag\Documents\Collectors\sample-code-csharp-master\sample-code-csharp-master\SampleCode.cs:line 228

       at net.authorize.sample.SampleCode.SelectMethod() in c:\Users\seshag\Documents\Collectors\sample-code-csharp-master\sample-code-csharp-master\SampleCode.cs:line 63

       at net.authorize.sample.SampleCode.Main(String[] args) in c:\Users\seshag\Documents\Collectors\sample-code-csharp-master\sample-code-csharp-master\SampleCode.cs:line 26

       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException: System.IO.IOException

       HResult=-2146232800

       Message=Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.

       Source=System

       StackTrace:

            at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)

           at System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count)

            at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)

            at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)

            at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)

            at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

            at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

            at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

            at System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result)

            at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size)

            at System.Net.ConnectStream.WriteHeaders(Boolean async)

       InnerException: System.Net.Sockets.SocketException

            HResult=-2147467259

            Message=An existing connection was forcibly closed by the remote host

            Source=System

            ErrorCode=10054

            NativeErrorCode=10054

            StackTrace:

                 at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)

                 at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)

            InnerException:

Configuration Details of my local machine

I am testing the Authorise.NET API with Sample Code Solution downloaded from GIT repository in Visual Studio 2012. I have installed .NET framework 4.6.2 on my Windows.

Target .NET version I have set in config files is as follows

App.config

<startup>

       <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2" />

</startup>

Packages.config

<packages>

<package id="AuthorizeNet" version="1.9.3" targetFramework="net462" />

</packages>

I can't even explictly set  to TLS12 in my code as it does not  show me tLS2 option

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls

Would appreciate your support on resolving this issue.

Thanks

Sesha

[NexusSoftware]

Hello, 

using System.Net;
using System.Security.Authentication;

  In the function where you make your web request, try: 

   const SslProtocols _Tls12 = (SslProtocols)0x00000C00;
   const SecurityProtocolType Tls12 = (SecurityProtocolType)_Tls12;
   ServicePointManager.SecurityProtocol = Tls12;

[se12sha]

I tried as suggested and it worked like a champ! Thanks a lot for your help.

Sesha