An unsecured or incorrectly secured fault was received from the other party. See the inner FaultException for the fault code and detail - dynamics-crm

Question

When I try to execute a CRM CRUD operation using a Console App, I'm getting the following error:
System.ServiceModel.Security.MessageSecurityException
  HResult=0x80131501
  Message=An unsecured or incorrectly secured fault was received from the other party. See the inner FaultException for the fault code and detail.
  Source=mscorlib
class Program
{
static void Main(string[] args)
{
IOrganizationService _serviceProxy = crmConnection();
Entity con = new Entity("contact");
con["lastname"] = "test";
_serviceProxy.Create(con);
}
private static IOrganizationService crmConnection()
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
Uri oUri = new Uri("https://XXXXXXXX.api.crm.dynamics.com/XRMServices/2011/Organization.svc");
ClientCredentials clientCredentials = new ClientCredentials();
clientCredentials.UserName.UserName = "XXXXXXXXXXXX";
clientCredentials.UserName.Password = "XXXXXXXXXXXXXXXXXX";
OrganizationServiceProxy _serviceProxy = new OrganizationServiceProxy(oUri, null,clientCredentials,null);
_serviceProxy.Timeout = new TimeSpan(0, 10, 0);
return _serviceProxy;
}
}
Thanks in advance.
An unsecured or incorrectly secured fault was received from the other party

Answer 1

Try using Connection String with XrmTooling this way you can avoid call directly to the Organization.svc and handle the redirection to the SDK
var conn = new CrmServiceClient("AuthType=Office365;Username=xxx#xxx.com; Password=yyyyyy;Url=https://xxxx.crm.dynamics.com;RequireNewInstance=True");
IOrganizationService _orgService = conn.OrganizationWebProxyClient ?? (IOrganizationService)conn.OrganizationServiceProxy;
return _orgService;
If the error continues could be related to differences between your PC time and the Dynamics Server ajusted +-4 minutes and try again.
Hope it helps