Microsoft CRM 4: CrmException: Expired Key

Since Google gave me only 1 solution in Russian for this, I post here my solution

If you encounter the following exception in Microsoft CRM

Error Description:
The key specified to compute a hash value is expired, only active keys are valid. Expired Key : 
CrmKey(Id:a3ed4202-4ebb-dd11-b530-00155d012118, ScaleGroupId:00000000-0000-0000-0000-000000000000, KeyType:CrmWRPCTokenKey, 
Expired:True, ValidOn:11/26/2008 00:06:02, ExpiresOn:12/29/2008 00:06:02, CreatedOn:11/26/2008 00:06:02, CreatedBy:NT AUTHORITY\SYSTEM.

Error Details:
The key specified to compute a hash value is expired, only active keys are valid. Expired Key : 
CrmKey(Id:a3ed4202-4ebb-dd11-b530-00155d012118, ScaleGroupId:00000000-0000-0000-0000-000000000000, 
KeyType:CrmWRPCTokenKey, Expired:True, ValidOn:11/26/2008 00:06:02, ExpiresOn:12/29/2008 00:06:02, 
CreatedOn:11/26/2008 00:06:02, CreatedBy:NT AUTHORITY\SYSTEM.

Full Stack:
[CrmException: The key specified to compute a hash value is expired, only active keys are valid.  
Expired Key : CrmKey(Id:a3ed4202-4ebb-dd11-b530-00155d012118, 
ScaleGroupId:00000000-0000-0000-0000-000000000000, KeyType:CrmWRPCTokenKey, Expired:True, 
ValidOn:11/26/2008 00:06:02, ExpiresOn:12/29/2008 00:06:02, CreatedOn:11/26/2008 00:06:02, 
CreatedBy:NT AUTHORITY\SYSTEM.]
   at Microsoft.Crm.CrmKeyService.ComputeHash(CrmKey key, Guid scaleGroupId, HashParameterBase[] parameters)
   at Microsoft.Crm.CrmKeyService.ComputeHash(CrmKey key, HashParameterBase[] parameters)
   at Microsoft.Crm.Application.Security.WRPCContext..ctor()
   at Microsoft.Crm.Application.Controls.AppPage.ValidateWrpcContext()
   at Microsoft.Crm.Application.Controls.AppPage.OnInit(EventArgs e)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown.]
   at System.Web.UI.Page.HandleError(Exception e)
   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)
Other Message:
Error Number: 0x8004A106
Source File: Not available
Line Number: Not available

 

Make sure "Microsoft CRM Asynchronous Processing Service" is running.