I need to change the max number of attempts of login before lockout one account. The default value is 5 and i want increase to 15. I don't find any easy way to do this...Any ideas are appreciated, many thanks in advance for your time...

Do you refer to this section?

<add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="SiteSqlServer" enablePasswordRetrieval="true" enablePasswordReset="true"  requiresQuestionAndAnswer="false" minRequiredPasswordLength="7" minRequiredNonalphanumericCharacters="0" requiresUniqueEmail="false" passwordFormat="Encrypted" applicationName="DotNetNuke" description="Stores and retrieves membership data from the local Microsoft SQL Server database" />

I'm trying to add passwordAttemptThreshold="15"  but don't works

i tested with maxInvalidPasswordAttempts="15" but the same server error

System.Exception: Unhandled Error: ---> System.Configuration.ConfigurationErrorsException: Attribute not recognized 'MaxInvalidPasswordAttempts' (C:\********.com\wwwroot\web.config line 185)at System.Web.Security.Membership.Initialize()at System.Web.Security.Membership.GetUser(String username, Boolean userIsOnline)at System.Web.Security.Membership.GetUser(String username)at DotNetNuke.Security.Membership.AspNetMembershipProvider.GetUserMembership(UserInfo& user)at DotNetNuke.Entities.Users.UserInfo.get_Membership()at DotNetNuke.Entities.Users.UserInfo.set_Username(String Value)at DotNetNuke.Security.Membership.AspNetMembershipProvider.FillUserInfo(Int32 portalId, IDataReader dr, Boolean isHydrated, Boolean CheckForOpenDataReader)at DotNetNuke.Security.Membership.AspNetMembershipProvider.GetUserByUserName(Int32 portalId, String username, Boolean isHydrated)at DotNetNuke.Security.Membership.AspNetMembershipProvider.UserLogin(Int32 portalId, String username, String password, String verificationCode, UserLoginStatus& loginStatus)at DotNetNuke.Entities.Users.UserController.ValidateUser(Int32 portalId, String Username, String Password, String VerificationCode, String PortalName, String IP, UserLoginStatus& loginStatus)at DotNetNuke.Modules.Admin.Security.Signin.cmdLogin_Click(Object sender, EventArgs e)at System.Web.UI.WebControls.Button.OnClick(EventArgs e)at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)at System.Web.UI.Page.ProcessRequest()at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)at System.Web.UI.Page.ProcessRequest(HttpContext context)at ASP.default_aspx.ProcessRequest(HttpContext context)at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)--- End of inner exception stack trace ---