Error "Unable to find a Delivery Controller" when you launch Citrix Studio
Article ID: CTX235574
Updated On:
Description
Under rare conditions, when you launch Citrix Studio you might get the error 'Unable to find a Delivery Controller' as shown in the screenshot below:
Additionally, following event is recorded in Windows Application log:
| Source: | Citrix Configuration Service |
| Event ID: | 1007 |
| Description: | Otherwise unhandled exception in WCF call : System.ServiceModel.CommunicationException: Internal Error ---> System.NullReferenceException: Object reference not set to an instance of an object. at Citrix.Fma.Sdk.InterServiceManager.WcfClientBase`1.SelectNewConnection() at Citrix.Fma.Sdk.InterServiceManager.WcfClientBase`1.RegisteredCallAndRetry[TResult](Func`2 operation) --- End of inner exception stack trace --- at Citrix.Fma.Sdk.InterServiceManager.WcfClientBase`1.RegisteredCallAndRetry[TResult](Func`2 operation) at Citrix.InterService.DelegatedAdminApi.DelegatedAdminApiClient.CheckGlobalAccess(Boolean& accessGranted, String[] sids, String serviceType, String operation) at Citrix.Fma.Sdk.ServiceCore.DelegatedAdminProvider.DemandPermission(String operation) at Citrix.Fma.Sdk.ServiceCore.DelegatedAdminProvider.DemandPermission(String operation, ServiceRegistrationStates localAdminStates) at Citrix.Fma.Sdk.ServiceCore.ServiceCore.<>c__DisplayClass23_0.<GetServiceStatus>b__0() at Citrix.Fma.Sdk.ServiceCore.ServiceCore.CheckedCall[T](String name, Func`1 operation, Func`2 defaultValue, Enum code) |
Resolution
To resolve this issue, start the Citrix Delegated Administration Service. If you have more than one Delivery Controllers in the site, make sure the service startup type is set to 'Automatic' and the service is 'Running' on all Delivery Controllers.
Problem Cause
This issue can occur if Citrix Delegated Administration Service is not started.Issue/Introduction
Error "Unable to find a Delivery Controller" when you launch Citrix Studio
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