C# WCF: The request channel timed out while waiting for a reply
I have a small application that uses WCF to communicate with a webserver. This program is used by some 200 clients, and each client is sending in about 5-20 requests/min.

Looking at the error logs I often get:

  The request channel timed out while waiting for a reply after 00:00:59.9989999

The requests are made as follows:
  

    ClientService Client = new ClientService();
    Client.Open();
    Client.updateOnline(userID);
    Client.Close();

  

This is the app.config

    <configuration>
    <configSections>
    </configSections>
    <startup><supportedRuntime version="v2.0.50727"/></startup><system.serviceModel>
        <bindings>
            <wsHttpBinding>
                <binding name="WSHttpBinding_IClientService" closeTimeout="00:01:00"
                    openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
                    bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
                    maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
                    messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
                    allowCookies="false">
                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                    <reliableSession ordered="true" inactivityTimeout="00:10:00"
                        enabled="false" />
                    <security mode="None">
                        <transport clientCredentialType="Windows" proxyCredentialType="None"
                            realm="" />
                        <message clientCredentialType="Windows" negotiateServiceCredential="true" />
                    </security>
                </binding>
            </wsHttpBinding>
        </bindings>
        <client>
            <endpoint address="PATH TO SERVICE"
                binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IClientService"
                contract="IClientService" name="WSHttpBinding_IClientService">
                <identity>
                    <dns value="localhost" />
                </identity>
            </endpoint>
        </client>
    </system.serviceModel>
</configuration>



Of the "many calls" each day about 200-800 fails. And about n-1 are ok. I am very confused what the issue can be. Looking at the server stats, its hardly building up a sweat - each request takes <2 sec to process.The data its sending consists of "int" or "very small strings" - so, its not due to size, if it was - there should be a consistent failure..

Suggestions?

C# WCF: The request channel timed out while waiting for a reply
===

I have a small application that uses WCF to communicate with a webserver. This program is used by some 200 clients, and each client is sending in about 5-20 requests/min.

Looking at the error logs I often get:

  The request channel timed out while waiting for a reply after 00:00:59.9989999

The requests are made as follows:
  

    ClientService Client = new ClientService();
    Client.Open();
    Client.updateOnline(userID);
    Client.Close();

  

This is the app.config

    <configuration>
    <configSections>
    </configSections>
    <startup><supportedRuntime version="v2.0.50727"/></startup><system.serviceModel>
        <bindings>
            <wsHttpBinding>
                <binding name="WSHttpBinding_IClientService" closeTimeout="00:01:00"
                    openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
                    bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
                    maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
                    messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
                    allowCookies="false">
                    <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                    <reliableSession ordered="true" inactivityTimeout="00:10:00"
                        enabled="false" />
                    <security mode="None">
                        <transport clientCredentialType="Windows" proxyCredentialType="None"
                            realm="" />
                        <message clientCredentialType="Windows" negotiateServiceCredential="true" />
                    </security>
                </binding>
            </wsHttpBinding>
        </bindings>
        <client>
            <endpoint address="PATH TO SERVICE"
                binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IClientService"
                contract="IClientService" name="WSHttpBinding_IClientService">
                <identity>
                    <dns value="localhost" />
                </identity>
            </endpoint>
        </client>
    </system.serviceModel>
</configuration>



Of the "many calls" each day about 200-800 fails. And about n-1 are ok. I am very confused what the issue can be. Looking at the server stats, its hardly building up a sweat - each request takes <2 sec to process.The data its sending consists of "int" or "very small strings" - so, its not due to size, if it was - there should be a consistent failure..

Suggestions?
