We have 2 identical database tables on our dev server. In both is a table that holds an X509Certificate2 data in one of its fields.

When I grab the cert along with the password that I've been using all along, it works over the first database just fine. I run the same code though over the 2nd database and get this error and I don't get why if the setup is exactly the same and the database is also on this server. So I'm not sure why when I switch my connection string to talk to Database2, even though it's setup the same and the code I'm running over it is the same, it complains.

Here's the stack trace:

 An existing connection was forcibly closed by the remote host
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[SocketException (0x2746): An existing connection was forcibly closed by the remote host]
   System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +232

[IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.]
   System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +7035903
   System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count) +58
   System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) +116
   System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123
   System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) +86
   System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123
   System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) +86
   System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123
   System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) +86
   System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) +123
   System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest) +7184357
   System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult) +217
   System.Threading.ExecutionContext.runTryCode(Object userData) +376
   System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) +0
   System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) +98
   System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result) +1134
   System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size) +88
   System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size) +20
   System.Net.ConnectStream.WriteHeaders(Boolean async) +360

[WebException: The underlying connection was closed: An unexpected error occurred on a send.]
   System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) +857631
   System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request) +10
   System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) +243
   Pmall.PayPal.PayPalApi.PayPalAPIAASoapBinding.SetExpressCheckout(SetExpressCheckoutReq SetExpressCheckoutReq) in C:\www\ssss\ssss\ssss\ssss\Reference.cs:1304
   ssss.PayPal.ExpressCheckout.PayPalCheckout.SetExpressCheckout(PaymentDetailsType[] paymentDetails, String returnURL, String cancelURL, PayPalPaymentFlowType paymentFlowType) in C:\www\ssss\ssss\ssss\PayPalCheckout.cs:96
   ssss.Web.ssss.SetExpressCheckout() in C:\www\ssss\ssss\ssss.aspx.cs:83
   ssss.Web.ssss.Page_Load(Object sender, EventArgs e) in C:\www\ssss\ssss\Register.aspx.cs:24
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
   System.Web.UI.Control.OnLoad(EventArgs e) +132
   System.Web.UI.Control.LoadRecursive() +66
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428