WCF throwing error when alarge List is passed To it. "The remote server returned an unexpected response: (400) Bad Request."

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C#

ASP.NET

WCF

I have a list which has 9 fields. When i pass A smaller list (say 50 rows) the application is working fine. If i pass a larger list my service is throwing the exception "The remote server returned an unexpected response: (400) Bad Request." exception. please help me solving this issue.

My Web config is as below

<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <connectionstrings>
    <add name="ApplicationServices">
         connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true"
         providerName="System.Data.SqlClient" />

  </add></connectionstrings>

  <system.web>
    <compilation debug="true" targetframework="4.0" />

    <authentication mode="Windows">
            <!--<forms loginUrl="~/Account/Login.aspx" timeout="2880" />-->
    </authentication>
    <identity impersonate="false" />
    <membership>
      <providers>
        <clear />
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionstringname="ApplicationServices">
             enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
             maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
             applicationName="/" />
      </add></providers>
    </membership>

    <profile>
      <providers>
        <clear />
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionstringname="ApplicationServices" applicationname="/" />
      </providers>
    </profile>

    <rolemanager enabled="false">
      <providers>
        <clear />
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionstringname="ApplicationServices" applicationname="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationname="/" />
      </providers>
    </rolemanager>

    <httpruntime maxrequestlength="2147483647" executiontimeout="3600" />

  </system.web>

  <system.webserver>
     <modules runallmanagedmodulesforallrequests="true" />
  </system.webserver>
  <system.servicemodel>
    <behaviors>
      <endpointbehaviors>
        <behavior name="Behavior">
          <datacontractserializer maxitemsinobjectgraph="2147483647" />
        </behavior>
      </endpointbehaviors>
    </behaviors>
    <bindings>
      <basichttpbinding>
        <binding name="BasicHttpBinding_IService1" closetimeout="00:20:00">
        openTimeout="00:20:00" receiveTimeout="00:20:00" sendTimeout="00:20:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8"
          useDefaultWebProxy="true">
          <readerquotas maxdepth="2147483647" maxstringcontentlength="2147483647">
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="None">
            <transport clientcredentialtype="Windows" proxycredentialtype="Windows">
              realm="" />
            <message clientcredentialtype="UserName" algorithmsuite="Default" />
          </transport></security>
        </readerquotas></binding>
        <binding name="BasicHttpBinding_IErrorService" closetimeout="00:20:00">
        openTimeout="00:20:00" receiveTimeout="00:20:00" sendTimeout="00:20:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8"
          useDefaultWebProxy="true">
          <readerquotas maxdepth="2147483647" maxstringcontentlength="2147483647">
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="None">
            <transport clientcredentialtype="None" proxycredentialtype="None">
              realm="" />
            <message clientcredentialtype="UserName" algorithmsuite="Default" />
          </transport></security>
        </readerquotas></binding>
        <binding name="BasicHttpBinding_ISecurityUserService" closetimeout="00:20:00">
        openTimeout="00:20:00" receiveTimeout="00:20:00" sendTimeout="00:20:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8"
          useDefaultWebProxy="true">
          <readerquotas maxdepth="2147483647" maxstringcontentlength="2147483647">
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="None">
            <transport clientcredentialtype="Windows" proxycredentialtype="Windows">
              realm="" />
            <message clientcredentialtype="UserName" algorithmsuite="Default" />
          </transport></security>
        </readerquotas></binding>
      </basichttpbinding>
    </bindings>
    <client>
      <endpoint address="http://localhost:6789/Service1.svc" binding="basicHttpBinding">
        bindingConfiguration="BasicHttpBinding_IService1" contract="ServiceReference1.IService1"
        name="BasicHttpBinding_IService1" />
      <endpoint address="http://localhost:6789/ErrorService.svc" binding="basicHttpBinding">
        bindingConfiguration="BasicHttpBinding_IErrorService" contract="ErrorServiceReference.IErrorService"
        name="BasicHttpBinding_IErrorService" />
      <endpoint address="http://localhost:6789/SecurityUserService.svc">
        binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ISecurityUserService"
        contract="SecurityUserServiceReference.ISecurityUserService"
        name="BasicHttpBinding_ISecurityUserService" />
    </endpoint></endpoint></endpoint></client>
  </system.servicemodel>
</configuration>

and my wcf config is as below

<configuration>
  <connectionstrings>

    <add name="DEFAULT" connectionstring="server=DEV1;Port=52;database=UTIL;User=ara;password=me;Charset=iso_1;Connect Timeout=100" />

  </connectionstrings>
  <appsettings>
    <add key="DEFAULT_SERVER" value="UAT" />
    <add key="DEFAULT_DATABASE" value="UTIL" />
    <add key="DEFAULT_PORT" value="480" />
    <add key="DEFAULT_USER" value="fator" />
    <add key="DEFAULT_PASSWORD" value="U212ajUyODY=" />
  </appsettings>
  <system.web>
    <compilation debug="true" targetframework="4.0" />

      <httpruntime maxrequestlength="2147483647" executiontimeout="3600" />

  </system.web>
  <system.servicemodel>
    <behaviors>
      <servicebehaviors>
        <behavior name="Behavior">
          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <servicemetadata httpgetenabled="true" />
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <servicedebug includeexceptiondetailinfaults="true" />
        </behavior>
      </servicebehaviors>
    </behaviors>

    <services>

    </services>

    <servicehostingenvironment multiplesitebindingsenabled="true" />
  </system.servicemodel>
 <system.webserver>
    <modules runallmanagedmodulesforallrequests="true" />
  </system.webserver>

</configuration>

I modified my service web config with endpoint and binding as below. but still I am getting the same error

<configuration>
  <connectionstrings>

    <add name="DEFAULT" connectionstring="server=DEV;Port=52;database=UTIL;User=ar;password=me3;Charset=iso_1;Connect Timeout=100" />

  </connectionstrings>
  <appsettings>
    <add key="DEFAULT_SERVER" value="UA" />
    <add key="DEFAULT_DATABASE" value="UTIL" />
    <add key="DEFAULT_PORT" value="45" />
    <add key="DEFAULT_USER" value="fr" />
    <add key="DEFAULT_PASSWORD" value="Y=" />
  </appsettings>
  <system.web>
    <compilation debug="true" targetframework="4.0" />

      <httpruntime maxrequestlength="2147483647" executiontimeout="3600" />

  </system.web>
  <system.servicemodel>
    <behaviors>
      <servicebehaviors>
        <behavior name="Behavior">
          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <servicemetadata httpgetenabled="true" />
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <servicedebug includeexceptiondetailinfaults="true" />
          <datacontractserializer maxitemsinobjectgraph="2147483647" />
        </behavior>
      </servicebehaviors>
    </behaviors>

    <services>
      <service name="Service.Service1" behaviorconfiguration="Behavior">
        <endpoint address="">
                  binding="basicHttpBinding"
                  bindingConfiguration="BasicHttpBinding_IService1"
                  contract="Service.IService1"
                  name="BasicHttpBinding_IService1" />
        <endpoint address="mex">
                  binding="mexHttpBinding"
                  contract="IMetaDataExchange"></endpoint>
        <host>
          <timeouts opentimeout="00:30:00" />
        </host>
      </endpoint></service>
      <service name="Service.ErrorService" behaviorconfiguration="Behavior">
        <endpoint address="">
                  binding="basicHttpBinding"
                  bindingConfiguration="BasicHttpBinding_IErrorService"
                  contract="Service.IErrorService"
                  name="BasicHttpBinding_IErrorService" />
        <endpoint address="mex">
                  binding="mexHttpBinding"
                  contract="IMetaDataExchange"></endpoint>
        <host>
          <timeouts opentimeout="00:30:00" />
        </host>
      </endpoint></service>
      <service name="Service.SecurityUserService" behaviorconfiguration="Behavior">
        <endpoint address="">
                  binding="basicHttpBinding"
                  bindingConfiguration="BasicHttpBinding_ISecurityUserService"
                  contract="Service.ISecurityUserService"
                  name="BasicHttpBinding_IErrorService" />
        <endpoint address="mex">
                  binding="mexHttpBinding"
                  contract="IMetaDataExchange"></endpoint>
        <host>
          <timeouts opentimeout="00:30:00" />
        </host>
      </endpoint></service>
    </services>
    <bindings>
      <basichttpbinding>
      <binding name="BasicHttpBinding_IService1" closetimeout="00:20:00">
        openTimeout="00:20:00" receiveTimeout="00:20:00" sendTimeout="00:20:00"
        allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
        maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
        messageEncoding="Text" textEncoding="utf-8"
        useDefaultWebProxy="true">
        <readerquotas maxdepth="2147483647" maxstringcontentlength="2147483647">
          maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />

        <security mode="None">
          <transport clientcredentialtype="Windows" proxycredentialtype="Windows">
            realm="" />
          <message clientcredentialtype="UserName" algorithmsuite="Default" />
        </transport></security>
      </readerquotas></binding>
        <binding name="BasicHttpBinding_IErrorService" closetimeout="00:20:00">
        openTimeout="00:20:00" receiveTimeout="00:20:00" sendTimeout="00:20:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8"
          useDefaultWebProxy="true">
          <readerquotas maxdepth="2147483647" maxstringcontentlength="2147483647">
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="None">
            <transport clientcredentialtype="None" proxycredentialtype="None">
              realm="" />
            <message clientcredentialtype="UserName" algorithmsuite="Default" />
          </transport></security>
        </readerquotas></binding>
        <binding name="BasicHttpBinding_ISecurityUserService" closetimeout="00:20:00">
        openTimeout="00:20:00" receiveTimeout="00:20:00" sendTimeout="00:20:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8"
          useDefaultWebProxy="true">
          <readerquotas maxdepth="2147483647" maxstringcontentlength="2147483647">
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="None">
            <transport clientcredentialtype="Windows" proxycredentialtype="Windows">
              realm="" />
            <message clientcredentialtype="UserName" algorithmsuite="Default" />
          </transport></security>
        </readerquotas></binding>
      </basichttpbinding>
    </bindings>
    <servicehostingenvironment multiplesitebindingsenabled="true" />
  </system.servicemodel>
 <system.webserver>
    <modules runallmanagedmodulesforallrequests="true" />
  </system.webserver>

</configuration>

I guess The endpoint and the binding i defined explicitly are not getting used by the service. please correct me if i have configured The service wrong