To call this method, the "Membership.Provider" property must be an instance of "ExtendedMembershipProvider".

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WCF

MVC

webservice

I try to create and WCF Service Host and MVC client application. Everything works fine when i retrieve data from mvc client through method in wcf. But i have problem with authentication. I try to define a method in a service to login using WebSecurity.Login
and i got this error : To call this method, the "Membership.Provider" property must be an instance of "ExtendedMembershipProvider".

Here is my login method

public bool Login(string username,string password)
   {
       try
       {
           if (!WebSecurity.Initialized)
               WebSecurity.InitializeDatabaseConnection("DreamlandShopEntities",
                   "UserProfile", "UserId", "UserName", true);
           if (WebSecurity.Login(username, username))
           return true;
       }
       catch (FaultException ex)
       {
           return false;
       }
       return false;
   }

and here is my Web.config file

<?xml version="1.0"?>
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
  </configSections>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="mexBehavior">
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
          <dataContractSerializer maxItemsInObjectGraph="2147483647"/>
          <bufferedReceive maxPendingMessagesPerChannel="700000"/>
          <!--<serviceCredentials>
            <userNameAuthentication userNamePasswordValidationMode="MembershipProvider" membershipProviderName="SimpleMembershipProvider"/>
          </serviceCredentials>-->
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <wsHttpBinding>
        <binding name="webHttpConfig" allowCookies="true" maxReceivedMessageSize="20000000" maxBufferPoolSize="20000000" messageEncoding="Mtom">
          <readerQuotas maxDepth="32" maxArrayLength="200000000" maxStringContentLength="200000000"/>
          <!--<security mode="Message">
            <message clientCredentialType="UserName"/>
          </security>-->
        </binding>
      </wsHttpBinding>
    </bindings>
    <services>
      <service name="InternetShop.Service.ShopService" behaviorConfiguration="mexBehavior">
        <endpoint address="ShopService" binding="wsHttpBinding" bindingConfiguration="webHttpConfig" contract="InternetShop.Service.IShopService">
          <identity>
            <dns value="localhost"/>
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8723/ShopService/"/>
          </baseAddresses>
        </host>
      </service>
    </services>
  </system.serviceModel>
  <connectionStrings>
    <add name="DreamlandShopEntities" connectionString="metadata=res://*/Model.csdl|res://*/Model.ssdl|res://*/Model.msl;provider=System.Data.SqlClient;provider connection string="data source=dreamland\dreamland;initial catalog=DreamlandShop;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient"/>
  </connectionStrings>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="mssqllocaldb"/>
      </parameters>
    </defaultConnectionFactory>
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
    </providers>
  </entityFramework>
  <system.web>
    <roleManager enabled="true"/>
    <!--<roleManager enabled="true"/>
    <membership defaultProvider="SimpleMemberShipProvider" userIsOnlineTimeWindow="15">
      <providers>
        <clear/>
        <add name="SqlMembershipProvider" type="WebMatrix.WebData.SimpleMembershipProvider"
             connectionStringName="DreamlandShopEntities" applicationName="InternetShop.MVC" 
      enablePasswordRetrieval="false" enablePasswordReset="false" requiresQuestionAndAnswer="false"
      requiresUniqueEmail="true" passwordFormat="Hashed"/>
      </providers>
    </membership>-->
   
  </system.web>
  <appSettings>
    <add key="enableSimpleMembership" value="true"/>
    <add key="autoFormsAuthentication" value="true"/>
  </appSettings>
  
</configuration>

Any hint? Thanks in advance