Develop Reference

Uploading via service and getting message endpoint not available on larger sized files

I have a WCF service running on a virtual machine. I haven't changed anything on this server or the service in quite some time. When I try to send up a file through the service that is ~25 mb I am getting this:
----------------------------------------------------------
DateTime: 1/24/2019 12:22:04 PM
ClassName: UploadPpsZipFile
Message: There was no endpoint listening at http://www.myservice.com/xxx/FileService.svc that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
Server stack trace:
at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()
at System.ServiceModel.Channels.HttpOutput.Send(TimeSpan timeout)
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.SendRequest(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at WebStorageFileTransfer.TruckTransferServiceReference.IFileService.UploadPpsZipFile(UploadFileRequest uploadFileRequest)
at WebStorageFileTransfer.ProgramTypes.SendZip.SendZip_Upload.UploadPpsZipFile(FileParms fileParms)
Unable to connect to the remote server
at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
at System.Net.HttpWebRequest.GetRequestStream()
at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()
An attempt was made to access a socket in a way forbidden by its access permissions xxx.xxx.xxx.xxx:80
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
----------------------------------------------------------
My app.exe.config looks like this:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0,Profile=Client" />
</startup>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IFileService" maxReceivedMessageSize="2147483647" sendTimeout="00:02:00">
<readerQuotas maxStringContentLength="2147483647" maxArrayLength="2147483647" />
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://www.myservice.com/xxxx/FileService.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IFileService" contract="TruckTransferServiceReference.IFileService" name="BasicHttpBinding_IFileService" />
</client>
</system.serviceModel>
</configuration>
When I send up a smaller file, such as a 1mb file, I have no issues. I have tested this on several computers and I get the same results.
Any suggestions?

There are 3 things that you can change in order to make it work :
IIS Host Settings:
I believe you have hosted the WCF service in IIS. Hence you need to set the
When sending large amounts of data you will need to set the maxAllowedContentLength IIS setting (for more information see Configuring IIS Request Limits)
This value defaults to ~28MB as far as I know.
Max Received Message Size:
You will have to change this to some other value (e.g. long.MaxValue). By default it is set to 64 KB.
Enable Streaming
By default the mode of transmission for WCF is buffered. While sending and receiving all data need to be present in memory - which would not be possible for large files.
Hence you will have to change the mode to "streaming" as shown below:
<system.serviceModel>
…
<bindings>
<basicHttpBinding>
<binding name="ExampleBinding" transferMode="Streaming"/>
</basicHttpBinding>
</bindings>
…
<system.serviceModel>
Refer the documentation.

WCF communication error

We've been encountering a WCF communication error for a couple of days now and I can't figure out what is causing the error. I originally thought that it was an SSL cert issue, but it's not. I also made sure the endpoint was reachable by just entering the URL on the web browser and it is view-able. I also made sure that the default request size is not causing the problem. I'm certain that the requests are less than the default of 30MB.
What other things can prevent this stack trace error?
Client stack trace:
WCFDirector fetch failed due to communication failure.
Because the form did not load properly it must be closed. ---> OSI.Framework.FrameworkException: WCFDirector fetch failed due to communication failure. ---> System.ServiceModel.CommunicationException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.Net.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
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)
--- End of inner exception stack trace ---
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._SslStream.StartFrameHeader(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.Security._SslStream.StartReading(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.Security._SslStream.ProcessRead(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.TlsStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead)
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.GetResponse()
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
--- End of inner exception stack trace ---
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason)
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Try to set KeepAlive off.
Something like:
var client = new MyWcfClient();
var customBinding = new CustomBinding(client.Endpoint.Binding);
var transportElement = customBinding.Elements.Find<HttpTransportBindingElement>();
transportElement.KeepAliveEnabled = false;
client.Endpoint.Binding = customBinding;
Config only version for Rest API and SOAP
<services>
<service name="SecureTransportDemo.Service.GreetingService">
<endpoint address="Soap"
binding="customBinding"
bindingConfiguration="soap-secure-nokeepalive"
contract="SecureTransportDemo.Service.IGreetingService"
name="soap-nokeepalive"/>
<endpoint address="Rest"
binding="customBinding"
bindingConfiguration="rest-secure-nokeepalive"
behaviorConfiguration="web"
contract="SecureTransportDemo.Service.IGreetingService"
name="rest-nokeepalive"/>
</service>
</services>
<bindings>
<customBinding>
<binding name="soap-secure-nokeepalive">
<textMessageEncoding />
<httpsTransport allowCookies="false"
keepAliveEnabled="false"/>
</binding>
<binding name="rest-secure-nokeepalive">
<webMessageEncoding />
<httpsTransport manualAddressing="true"
allowCookies="false"
keepAliveEnabled="false"/>
</binding>
</customBinding>
</bindings>
<behaviors>
<endpointBehaviors>
<behavior name="web">
<webHttp automaticFormatSelectionEnabled="true"
faultExceptionEnabled="true"
helpEnabled="true"/>
</behavior>
</endpointBehaviors>
</behaviors>

System.ServiceModel.CommunicationException: The underlying connection was closed

I am retrieving data from a wcf web service and when data is more than 0.2 million records i get an exception which is as under:
System.ServiceModel.CommunicationException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.Net.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
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)
--- End of inner exception stack trace ---
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size)
at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead)
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.GetResponse()
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
--- End of inner exception stack trace ---
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason)
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
My web.config looks like this :
<basicHttpBinding>
<binding name="BasicHttpBinding_IService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
messageEncoding="Text" textEncoding="utf-8" transferMode="StreamedResponse" useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="2147483647" maxArrayLength="2147483647"
maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None" realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
<binding maxReceivedMessageSize="2147483647" allowCookies="true">
<readerQuotas maxDepth="32" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647"
maxNameTableCharCount="2147483647" />
</binding>
</basicHttpBinding>
I am sure that my web service is retrieving data from DB. but is unable to transfer to my web from where i initiated the call. Thanks in advance for any help.

I had recently the same problem with a Wcf service within a .Net 4.0 web app. I increased the maxItemsInObjectGraph value and server didn't throw the exception anymore. The documentation here says the default maximum is Int32.MaxValue but I think it is incorrect, the maximum value is 65535.
<serviceBehaviors>
<behavior name="ServiceBehaviour">
<dataContractSerializer maxItemsInObjectGraph="6553500"/>
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
The other thing you can do is enable tracing. This is an example of what I have in the web.config:
<system.diagnostics>
<sources>
<source name="System.ServiceModel"
switchValue="Information, ActivityTracing"
propagateActivity="true">
<listeners>
<add name="traceListener"
type="System.Diagnostics.XmlWriterTraceListener"
initializeData= "c:\temp\log\Traces.svclog" />
</listeners>
</source>
</sources>
</system.diagnostics>
If you double click on the Traces.svclog, windows should open the Microsoft Service Trace Viewer.
If you test your service with the Microsoft WCF Test Client make sure you change the default client config to match the server settings (this includes the client endpoint behavior) to make sure the client can receive the response from the server.

Make your client basicHttpBinding the same as your server binding. This is a verry common error to only change one binding instead of server and client binding.
If that not works you can enable wcf tracing:
wcf tracing
That will give you more insights in what the underling problem is.

Add following configuration to your wcf service config. And see c:\log\Traces.svclog file.
My exception was throw for ;
There was an error while trying to serialize parameter
The InnerException message was 'Enum value '0' is invalid for type 'ThyCams2014.XrmBase.new_filingstatu' and cannot be serialized. Ensure that the necessary enum values are present and are marked with EnumMemberAttribute attribute if the type has DataContractAttribute attrienter code herebute.'. Please see InnerException for more details.
<configuration>
<system.diagnostics>
<sources>
<source name="System.ServiceModel"
switchValue="Information, ActivityTracing"
propagateActivity="true">
<listeners>
<add name="traceListener"
type="System.Diagnostics.XmlWriterTraceListener"
initializeData= "c:\log\Traces.svclog" />
</listeners>
</source>
</sources>
</system.diagnostics>
</configuration>

This statement solved my problem:
db.ContextConfiguration.ProxyCreationEnabled = false;

we had a loop in our object graph that were returning. I know this probably isn't your problem but I'm adding it here in case anyone else has the same problem. We had includeExceptionDetailInFaults enabled but weren't getting the error in any client (our application or the WCF Test Client). Luckily it showed up in server logs so we were able to find it that way.
We had Parent -> child and child -> parent for two-way navigation, we had to break that link and instead have parent -> child, and the child had an id to lookup the parent, then the error went away.

Had the same error after migrating to a new server.
It finally boiled down to a missing targetFramework attribute that was not needed on the old server...
<system.web>
<httpRuntime enableVersionHeader="false" targetFramework="4.7.2"/>
</system.web>

AppFabric Caching adding large object to a remote server

I'm using AppFabric caching for Windows Server 1.1. I'm trying to add an object of 80MB to the cache which is located on another server on the network. I get the following error:
ErrorCode:SubStatus:There is a temporary failure.
Please retry later. (One or more specified cache servers
are unavailable, which could be caused by busy network or servers. For
on-premises cache clusters, also verify the following conditions.
Ensure that security permission has been granted for this client
account, and check that the AppFabric Caching Service is allowed
through the firewall on all cache hosts. Also the MaxBufferSize on the
server must be greater than or equal to the serialized object size
sent from the client.): inner
System.ServiceModel.CommunicationException: The socket was aborted
because an asynchronous receive from the socket did not complete
within the allotted timeout of 00:01:00. The time allotted to this
operation may have been a portion of a longer timeout. --->
System.Net.Sockets.SocketException: An established connection was
aborted by the software in your host machine at
System.ServiceModel.Channels.SocketConnection.Write(Byte[] buffer,
Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout) ---
End of inner exception stack trace --- at
System.ServiceModel.Channels.SocketConnection.Write(Byte[] buffer,
Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout) at
System.ServiceModel.Channels.SocketConnection.Write(Byte[] buffer,
Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout,
BufferManager bufferManager) at
System.ServiceModel.Channels.BufferedConnection.WriteNow(Byte[]
buffer, Int32 offset, Int32 size, TimeSpan timeout, BufferManager
bufferManager) at
System.ServiceModel.Channels.BufferedConnection.Write(Byte[] buffer,
Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout,
BufferManager bufferManager) at
System.ServiceModel.Channels.FramingDuplexSessionChannel.OnSend(Message
message, TimeSpan timeout) at
System.ServiceModel.Channels.OutputChannel.Send(Message message,
TimeSpan timeout) at
Microsoft.ApplicationServer.Caching.WcfClientChannel.SendOnChannel(EndpointID
endpoint, TimeSpan& timeout, WaitCallback callback, Object state,
Boolean async, IDuplexSessionChannel channel, Message message)
I can add smaller objects fine to the remote server so it's obviously something to do with the size. I've also installed the Cumulative update package 3 for AppFabric. I've disabled all security. Any ideas?
Server Config File:
<configuration>
<configSections>
<section name="dataCache" type="Microsoft.ApplicationServer.Caching.DataCacheSection, Microsoft.ApplicationServer.Caching.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</configSections>
<dataCache size="Small">
<caches partitionCount="32">
<cache consistency="StrongConsistency" name="default" minSecondaries="0">
<policy>
<eviction type="Lru" />
<expiration defaultTTL="1440" isExpirable="true" />
</policy>
</cache>
</caches>
<hosts>
<host replicationPort="22236" arbitrationPort="22235" clusterPort="22234"
hostId="1216617116" size="6126" leadHost="true" account="test$"
cacheHostName="AppFabricCachingService" name="test.com"
cachePort="22233" />
</hosts>
<advancedProperties>
<securityProperties mode="None" protectionLevel="None">
<authorization>
<allow users="IIS AppPool\test" />
</authorization>
</securityProperties>
<transportProperties maxBufferPoolSize="26843545600" maxBufferSize="838860800" receiveTimeout="40000" />
</advancedProperties>
<deploymentSettings>
<deploymentMode value="RoutingClient" />
</deploymentSettings>
</dataCache>
</configuration>
Section from Web.config from Client which is trying to push to AppFabric:
<dataCacheClient requestTimeout="60000" channelOpenTimeout="12000" maxConnectionsToServer="1">
<localCache isEnabled="false" sync="TimeoutBased" ttlValue="300" objectCount="10000"/>
<clientNotification pollInterval="300" maxQueueLength="10000"/>
<securityProperties mode="None" protectionLevel="None" />
<transportProperties connectionBufferSize="131072" maxBufferPoolSize="568435456" maxBufferSize="183886080" maxOutputDelay="2" channelInitializationTimeout="60000" receiveTimeout="60000" /> </dataCacheClient>
The connection is established in code as follows:
DataCacheServerEndpoint[] servers = new DataCacheServerEndpoint[1];
servers[0] = new DataCacheServerEndpoint("remoteServerName", 22233);
DataCacheFactoryConfiguration factoryConfig = new DataCacheFactoryConfiguration();
factoryConfig.Servers = servers;
//Pass configuration settings to cacheFactory constructor
_factory = new DataCacheFactory(factoryConfig);
_cache = _factory.GetCache("default");
And finally the code to add an item to the cache:
_cache.CreateRegion(region);
_cache.Put(key, value, new TimeSpan(0, timeToLive, 0), tag, region);

The solution to this issue was to increase the requestTimeout in the client web.config and remove the receiveTimeout setting.
The web.config now looks like:
<dataCacheClient requestTimeout="600000" channelOpenTimeout="12000" maxConnectionsToServer="1">
<localCache isEnabled="false" sync="TimeoutBased" ttlValue="300" objectCount="10000"/>
<clientNotification pollInterval="300" maxQueueLength="10000"/>
<securityProperties mode="None" protectionLevel="None" />
<transportProperties connectionBufferSize="131072" maxBufferPoolSize="568435456" maxBufferSize="183886080" maxOutputDelay="2" channelInitializationTimeout="60000" /> </dataCacheClient>

Why do I get connection aborted messages?

I have a web form that is sending data to a third party service using this library from http://www.xml-rpc.net.
Recently the form has started to throw exceptions. I have tried enabling trace in the web.config to see what data is going back and forth, but this seems to fix the problem, or at least stop the exception being thrown.
Any ideas what could be happening, or how I can diagnose this without apparently fixing the problem?
The trace code:
<system.diagnostics>
<trace autoflush="true" />
<sources>
<source name="System.Net">
<listeners>
<add name="WebPageTraceListener"
type="System.Web.WebPageTraceListener, System.Web, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
</listeners>
</source>
</sources>
<switches>
<add name="System.Net" value="Verbose" />
</switches>
</system.diagnostics>
The exception message:
System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine
[SocketException (0x2745): An established connection was aborted by the software in your host machine]
System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) +73
System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +131
[IOException: Unable to read data from the transport connection: An established connection was aborted by the software in your host machine.]
System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size) +313
System.Xml.XmlTextReaderImpl.ReadData() +444
System.Xml.XmlTextReaderImpl.EatWhitespaces(BufferBuilder sb) +285
System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace() +74
System.Xml.XmlTextReaderImpl.ParseDocumentContent() +187
System.Xml.XmlTextReaderImpl.Read() +151
System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc) +48
System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace) +129
System.Xml.XmlDocument.Load(XmlReader reader) +108
System.Xml.XmlDocument.Load(Stream inStream) +91
CookComputing.XmlRpc.XmlRpcSerializer.DeserializeResponse(Stream stm, Type svcType) +189
[XmlRpcIllFormedXmlException: Response from server does not contain valid XML.]
CookComputing.XmlRpc.XmlRpcSerializer.DeserializeResponse(Stream stm, Type svcType) +238
CookComputing.XmlRpc.XmlRpcClientProtocol.ReadResponse(XmlRpcRequest req, WebResponse webResp, Stream respStm, Type returnType) +111
CookComputing.XmlRpc.XmlRpcClientProtocol.Invoke(Object clientObj, MethodInfo mi, Object[] parameters) +762
CookComputing.XmlRpc.XmlRpcClientProtocol.Invoke(MethodInfo mi, Object[] Parameters) +11
XmlRpcProxyfd5eb8e7-d547-4544-bd38-7d6dc1366a49.login(String username, String password) +120

I think that the key may be near the bottom:
+129 System.Xml.XmlDocument.Load(XmlReader reader) +108 System.Xml.XmlDocument.Load(Stream inStream) +91 CookComputing.XmlRpc.XmlRpcSerializer.DeserializeResponse(Stream stm, Type svcType) +189 [XmlRpcIllFormedXmlException: Response from server does not contain valid XML.]
Your remote server is responding with an invalid xml document, and it looks like your connection is dying because of it.