i try to costomise Form authentification for my shrepoint foundation site collection. So when i try to log on with windows Authentification everything went well, but when i try to log on ith form authentication i get serveur error:

• i follow those steps to configure my web application:http://www.sharepointchick.com/archive/2010/05/06/configuring-claims-and-forms-based-authentication-for-use-with-an.aspx

  The server was unable to process the request due to an internal error. For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework 3.0 SDK documentation and inspect the server trace logs. Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.ReadResponse(Message response) +1148357 Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.Issue(RequestSecurityToken rst, RequestSecurityTokenResponse& rstr) +73 Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.Issue(RequestSecurityToken rst) +36 Microsoft.SharePoint.SPSecurityContext.SecurityTokenForContext(Uri context, Boolean bearerToken, SecurityToken onBehalfOf, SecurityToken actAs, SecurityToken delegateTo) +26731905 Microsoft.SharePoint.SPSecurityContext.SecurityTokenForFormsAuthentication(Uri context, String membershipProviderName, String roleProviderName, String username, String password, Boolean isPersistent) +26731868 Microsoft.SharePoint.IdentityModel.Pages.FormsSignInPage.GetSecurityToken(Login formsSignInControl) +210 Microsoft.SharePoint.IdentityModel.Pages.FormsSignInPage.AuthenticateEventHandler(Object sender, AuthenticateEventArgs formAuthenticateEvent) +123 System.Web.UI.WebControls.Login.AttemptLogin() +152 System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +124 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +70 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981

• Merged by Teodora SharkovaMicrosoft contingent staff Wednesday, August 26, 2015 1:15 PM doublon

i try to costomise Form authentification for my shrepoint foundation site collection. So when i try to log on with windows Authentification everything went well, but when i try to log on ith form authentication i get serveur error:

• i follow those steps to configure my web application:http://www.sharepointchick.com/archive/2010/05/06/configuring-claims-and-forms-based-authentication-for-use-with-an.aspx

  The server was unable to process the request due to an internal error. For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework 3.0 SDK documentation and inspect the server trace logs. Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.ReadResponse(Message response) +1148357 Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.Issue(RequestSecurityToken rst, RequestSecurityTokenResponse& rstr) +73 Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.Issue(RequestSecurityToken rst) +36 Microsoft.SharePoint.SPSecurityContext.SecurityTokenForContext(Uri context, Boolean bearerToken, SecurityToken onBehalfOf, SecurityToken actAs, SecurityToken delegateTo) +26731905 Microsoft.SharePoint.SPSecurityContext.SecurityTokenForFormsAuthentication(Uri context, String membershipProviderName, String roleProviderName, String username, String password, Boolean isPersistent) +26731868 Microsoft.SharePoint.IdentityModel.Pages.FormsSignInPage.GetSecurityToken(Login formsSignInControl) +210 Microsoft.SharePoint.IdentityModel.Pages.FormsSignInPage.AuthenticateEventHandler(Object sender, AuthenticateEventArgs formAuthenticateEvent) +123 System.Web.UI.WebControls.Login.AttemptLogin() +152 System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +124 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +70 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981

• Moved by Teodora SharkovaMicrosoft contingent staff Tuesday, August 25, 2015 7:50 AM moved from French forum

HI,This issue could be of reasons like IIS,apppool,Sql also.please check the link that explains more in detail about the issue and the solution.

http://expertsharepoint.blogspot.com/2014/08/the-server-was-unable-to-process.html