Unable to Register Device "Error: Unable to register device VM-W10-111111 on domain corp.contoso.com" (4295829)

Error: Unable to register device VM-W10-111111 on domain corp.contoso.com

Error thrown from the server: {"Message":"An error has occurred.","ExceptionMessage":"Value cannot be null.\r\nParameter name: value","ExceptionType":"System.ArgumentNullException","StackTrace":"   at System.Web.HttpHeaderCollection.SetHeader(String name, String value, Boolean replace)\r\n   at BinaryTree.ADMigrator.WebServer.Controllers.DevicesController.Register()\r\n   at lambda_method(Closure , Object , Object[] )\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.b__9(Object instance, Object[] methodParameters)\r\n   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ApiControllerActionInvoker.d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Web.Http.Filters.ActionFilterAttribute.d__5.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Filters.ActionFilterAttribute.d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ActionFilterResult.d__2.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.d__0.MoveNext()"}

Error thrown from the server: {"Message":"An error has occurred.","ExceptionMessage":"Value cannot be null.\r\nParameter name: value",

 

This error is coming from the web server, it is trying to set some headers for registration but failing because some value is NULL. You can confirm this by looking at the device table within SQL.

 

Open SQL Management Studio

Browse to the Database and right click to select New Query

Execute the following:

Select Name,Domain,AgentKey,ServiceKey, * from BT_Device Where Name = 'DeviceNameGoesHere'

Likely one of these fields is NULL which is leading to this error.

If one of the fields are missing you can address this by issuing an update statement. For example of Name filed is NULL you can execute the following: 

Update BT_Device SET Name = 'NameGoesHere' Where DeviceId= 123