000012289 - The HTTP request is unauthorized with client authentication scheme 'Anonymous'.

When attempting to run an Archer to Archer Data Feed, it fails with the following error in the JobFramework logs:

<E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent">
    <System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system">
        <EventID>3</EventID>
        <Type>3</Type>
        <SubType Name="Error">0</SubType>
        <Level>2</Level>
        <TimeCreated SystemTime="2013-08-14T06:40:21.2645963Z" />
        <Source Name="ArcherTech.DataFeed" />
        <Correlation ActivityID="{8dcee137-959c-4797-8aa1-50ef210a6022}" />
        <Execution ProcessName="ArcherTech.JobFramework.Job" ProcessID="10064" ThreadID="1" />
        <Channel />
        <Computer>XXXXXXXX</Computer>
    </System>
    <ApplicationData>
        <TraceData>
            <DataItem>
                <TraceRecord Severity="Error" xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord">
                    <TraceIdentifier>ArcherTech.DataFeed</TraceIdentifier>
                    <Description>Could not log in to the web service.  This could be due to the uri 'https://xxxxxxxx/Archer/ws/search.asmx' being invalid or invalid credentials.</Description>
                    <AppDomain>ArcherTech.JobFramework.Job.exe</AppDomain>
                    <ContextData>
                        <LogReferenceId>081413-064021-2333</LogReferenceId>
                        <DataFeedId>315</DataFeedId>
                        <DataFeedName>ATA Datafeed</DataFeedName>
                        <DataFeedHistoryId>631833</DataFeedHistoryId>
                    </ContextData>
                    <Exception>
                        <ExceptionType>System.ServiceModel.Security.MessageSecurityException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
                        <Message>The HTTP request is unauthorized with client authentication scheme 'Anonymous'. The authentication header received from the server was 'Negotiate,NTLM'.</Message>
                        <Source>mscorlib</Source>
                        <StackTrace>
Server stack trace: 
   at System.ServiceModel.Channels.HttpChannelUtilities.ValidateAuthentication(HttpWebRequest request, HttpWebResponse response, WebException responseException, HttpChannelFactory factory)
   at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException, ChannelBinding channelBinding)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
   at System.ServiceModel.Channels.RequestChannel.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&amp; msgData, Int32 type)
   at ArcherTech.DataFeed.ArcherAPIWebServiceGen.generalSoap.CreateUserSessionFromInstance(CreateUserSessionFromInstanceRequest request)
   at ArcherTech.DataFeed.ArcherAPIWebServiceGen.generalSoapClient.CreateUserSessionFromInstance(String userName, String instanceName, String password)
   at ArcherTech.DataFeed.Transporters.ArcherWebServiceTransporter.GetSessionToken(String url)</StackTrace>
                        <InnerException>
                            <ExceptionType>System.Net.WebException, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
                            <Message>The remote server returned an error: (401) Unauthorized.</Message>
                            <Source>System</Source>
                            <StackTrace>   at System.Net.HttpWebRequest.GetResponse()
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)</StackTrace>
                        </InnerException>