Payment Express Transmission Errors in the Payment Gateway Logs

Hi,

We've been getting errors in our Payment Gateway Logs. Without copying the entire text, these are the phrases that we're trying to figure out why they are happening:

There was no endpoint listening at sec.paymentexpress.com/.../PXWS.asmx that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.

and

<acquirerReco>AF</acquirerReco>
<acquirerResponseText>Transaction not available</acquirerResponseText>
<amount>0.00</amount>
<authCode />

2018-12-20 08:31:16.3122|There was no endpoint listening at https://sec.paymentexpress.com/WS/PXWS.asmx 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 PaymentExpressWSSoap.SubmitTransaction(SubmitTransactionRequest request)
   at PaymentExpressWSSoapClient.PaymentExpressWSSoap.SubmitTransaction(SubmitTransactionRequest request)
   at Tessitura.Service.PaymentGateway.PaymentExpress.PaymentExpressSoapClient.<MakeRequest>b__10_0(SubmitTransactionRequest x)
   at Tessitura.Service.PaymentGateway.PaymentExpress.PaymentExpressSoapClient.CallSubmitTransaction(Func`2 func, SubmitTransactionRequest request)
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()A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 203.207.60.102:443
   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)
2018-12-20 08:31:16.3122|Request to PaymentExpress for status of txnRef: 6721873
2018-12-20 08:31:17.4685|Response from PaymentExpress|<?xml version="1.0" encoding="utf-16"?><GetStatusResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Body><GetStatusResult><ExtensionData /><acquirerReco>AF</acquirerReco><acquirerResponseText>Transaction not available</acquirerResponseText><amount>0.00</amount><authCode /><authorized>0</authorized><billingId /><cardHolderHelpText>Communication could not be established or completed to perform the transaction at this time. Please try again later.</cardHolderHelpText><cardHolderName /><cardHolderResponseDescription>Communication could not be established or completed to perform the transaction at this time. Please try again later.</cardHolderResponseDescription><cardHolderResponseText>TRANSMISSION ERROR</cardHolderResponseText><cardName /><cardNumber>************..00</cardNumber><currencyId>0</currencyId><currencyName /><currencyRate>1.00</currencyRate><cvc2></cvc2><dateExpiry>****</dateExpiry><dateSettlement>19800101</dateSettlement><dpsBillingId /><dpsTxnRef>[****0000]</dpsTxnRef><helpText>Communication could not be established or completed to perform the transaction at this time. Please try again later.</helpText><merchantHelpText>Communication could not be established or completed to perform the transaction at this time. Please try again later.</merchantHelpText><merchantReference /><merchantResponseDescription>Communication could not be established or completed to perform the transaction at this time. Please try again later.</merchantResponseDescription><merchantResponseText>TRANSMISSION ERROR</merchantResponseText><reco>AF</reco><responseText>TRANSMISSION ERROR</responseText><retry>1</retry><statusRequired>0</statusRequired><testMode>0</testMode><txnRef>6721873</txnRef><txnType /><iccData /><cardNumber2 /><issuerCountryId /><txnMac /><cvc2ResultCode /><riskRuleMatches /><extendedData /></GetStatusResult></Body></GetStatusResponse>

<authorized>0</authorized>
<billingId />
<cardHolderHelpText>Communication could not be established or completed to perform the transaction at this time. Please try again later.</cardHolderHelpText>
<cardHolderName />
<cardHolderResponseDescription>Communication could not be established or completed to perform the transaction at this time. Please try again later.</cardHolderResponseDescription>
<cardHolderResponseText>TRANSMISSION ERROR</cardHolderResponseText>
<cardName />
<cardNumber>************..00</cardNumber>
<currencyId>0</currencyId>
<currencyName />
<currencyRate>1.00</currencyRate>
<cvc2></cvc2>
<dateExpiry>****</dateExpiry>
<dateSettlement>19800101</dateSettlement>
<dpsBillingId />
<dpsTxnRef>[****0000]</dpsTxnRef>
<helpText>Communication could not be established or completed to perform the transaction at this time. Please try again later.</helpText>
<merchantHelpText>Communication could not be established or completed to perform the transaction at this time. Please try again later.</merchantHelpText>
<merchantReference />
<merchantResponseDescription>Communication could not be established or completed to perform the transaction at this time. Please try again later.</merchantResponseDescription>
<merchantResponseText>TRANSMISSION ERROR</merchantResponseText>
<reco>AF</reco>
<responseText>TRANSMISSION ERROR</responseText>
<retry>1</retry>
<statusRequired>0</statusRequired>
<testMode>0</testMode>
<txnRef>6721873</txnRef>
<txnType /><iccData /><cardNumber2 /><issuerCountryId /><txnMac /><cvc2ResultCode /><riskRuleMatches /><extendedData /></GetStatusResult></Body></GetStatusResponse>

Has anyone else seen this error? I've asked Payment Express Support to look at it and they're telling me the problem is not on their end.

Thanks!