sessionState problem at .net mvc (MySQL)

Have next problem: i setup the custom session state server (store sessions in Mysql). But the session data not added to database (the default .net session table is empty), but the authorization works (!). If I change the coockieless option to true, the session data start to add to database (but i dont want to use coockieless=true).

Sometimes I think that the framework choose what to use: inproc or my custom store...

My Config:

<sessionState mode="Custom" cookieless="false" timeout="20" customProvider="MySqlSessionStateStore">
      <providers>
        <add name="MySqlSessionStateStore" type="MySql.Web.SessionState.MySqlSessionStateStore, MySql.Web, Version=6.3.6.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" applicationName="/" description="" connectionStringName="MySqlMembershipConnection" writeExceptionsToEventLog="False" autogenerateschema="True" />
      </providers>
    </sessionState>
    <authentication mode="Forms">
      <forms loginUrl="~/Account/LogOn" timeout="2880" />
    </authentication>
    <membership defaultProvider="MySqlMembershipProvider">
      <providers>
        <clear />
        <add name="MySqlMembershipProvider" type="MySql.Web.Security.MySQLMembershipProvider, MySql.Web, Version=6.3.6.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" applicationName="/" description="MySQL default application" connectionStringName="MySqlMembershipConnection" writeExceptionsToEventLog="False" autogenerateschema="True" enablePasswordRetrieval="False" enablePasswordReset="True" requiresQuestionAndAnswer="False" requiresUniqueEmail="True" passwordFormat="Hashed" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" passwordStrengthRegularExpression="" />
      </providers>
    </membership>
    <profile defaultProvider="MySqlProfileProvider">
      <providers>
        <clear />
        <add name="MySqlProfileProvider" type="MySql.Web.Profile.MySQLProfileProvider, MySql.Web, Version=6.3.6.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" applicationName="/" description="" connectionStringName="MySqlMembershipConnection" writeExceptionsToEventLog="False" autogenerateschema="True" />
      </providers>
    </profile>
    <roleManager enabled="true" defaultProvider="MySqlRoleProvider">
      <providers>
        <clear />
        <add name="MySqlRoleProvider" 开发者_JAVA百科type="MySql.Web.Security.MySQLRoleProvider, MySql.Web, Version=6.3.6.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" applicationName="/" description="" connectionStringName="MySqlMembershipConnection" writeExceptionsToEventLog="False" autogenerateschema="True" />
      </providers>
    </roleManager>
    <connectionStrings>
    <add name="photostorageEntities" connectionString="metadata=res://*/Models.Photos.csdl|res://*/Models.Photos.ssdl|res://*/Models.Photos.msl;provider=MySql.Data.MySqlClient;provider connection string=&quot;server=ip;User Id=user;password=pass;Persist Security Info=True;database=photostorage; Charset=utf8&quot;" providerName="System.Data.EntityClient" />
    <add name="MySqlMembershipConnection" connectionString="Data Source=ip;userid=user;password=pass;database=photostorage;Charset=utf8" providerName="MySql.Data.MySqlClient" />
  </connectionStrings>

Fixed using separated connection string for Sessions (I don't know why it's not working in other way)