The License service is not responding. Restart the Qlik NPrinting License service.

[mostal75]

Hello

I can't activate my Nprinting SMB Licence in fresh NPrinting installed server, with Signed licence Key

I receive this error: The License service is not responding. Restart the Qlik NPrinting License service.

Have try with or without firewall activated, changed to Local System account in NPrinting service, try offline activation method

Do you have any idea  please ?

Regards

Nprinting webengine log error :

Service exception serving the request http://vqlik-nprinting:4996/npe/license Qlik.NPrinting.Repo.ServiceException: License service: connection refused↵↓ à Qlik.NPrinting.Repo.Service.License.LicenseSignedKeysConnector.SetLicense(String licenseKey, Int32 timeoutMillis) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\Repo\Service\License\LicenseSignedKeysConnector.cs:ligne 304↵↓ à Qlik.NPrinting.Repo.Service.License.LicenseSignedKeysConnector.SignedKeyLicenseIsValid(String webLicenseSignedKey) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\Repo\Service\License\LicenseSignedKeysConnector.cs:ligne 246↵↓ à Qlik.NPrinting.Repo.Service.License.LicenseService.<>c__DisplayClass71_0.<ActivateLicense>b__0(ISession session) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\Repo\Service\License\LicenseService.cs:ligne 224↵↓ à Qlik.NPrinting.Repo.Service.SessionManager.<>c__DisplayClass7_0.<WithSession>b__0(ISession s) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\Repo.Common\Service\SessionManager.cs:ligne 49↵↓ à Qlik.NPrinting.Repo.Service.SessionManager.WithSession[T](Func`2 body, IsolationLevel isolationLevel, Boolean readOnly) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\Repo.Common\Service\SessionManager.cs:ligne 76↵↓ à Qlik.NPrinting.Repo.Service.License.LicenseService.ActivateLicense(LicenseActivation activation) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\Repo\Service\License\LicenseService.cs:ligne 220↵↓ à Qlik.NPrinting.WebEngine.Controllers.LicenseController.<>c__DisplayClass5_0.<Put>b__0() dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\Controllers\LicenseController.cs:ligne 44↵↓ à Qlik.NPrinting.WebEngine.Controllers.HttpHelper.WithErrorHandling[T](HttpRequestMessage request, String nullMsg, Func`1 body, ApiCrudOperation apiCrudOperation, String locationHeaderApiPath) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\Controllers\HttpHelper.cs:ligne 124↵↓ ↵↓=============↵↓ à Qlik.NPrinting.Common.Utils.NPLog.Error(String message, Exception ex, NPLoggingContext loggingContext) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\NPLogging\NPLog.cs:ligne 177↵↓ à Qlik.NPrinting.WebEngine.Controllers.HttpHelper.WithErrorHandling[T](HttpRequestMessage request, String nullMsg, Func`1 body, ApiCrudOperation apiCrudOperation, String locationHeaderApiPath) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\Controllers\HttpHelper.cs:ligne 124↵↓ à Qlik.NPrinting.WebEngine.Controllers.LicenseController.Put(License webLicense) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\Controllers\LicenseController.cs:ligne 36↵↓ à lambda_method(Closure , Object , Object[] )↵↓ à System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)↵↓ à System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)↵↓ à System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()↵↓ à System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)↵↓ à System.Web.Http.Controllers.ApiControllerActionInvoker.InvokeActionAsyncCore(HttpActionContext actionContext, CancellationToken cancellationToken)↵↓ à System.Web.Http.Controllers.ApiControllerActionInvoker.InvokeActionAsync(HttpActionContext actionContext, CancellationToken cancellationToken)↵↓ à System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>b__0(ActionInvoker innerInvoker)↵↓ à System.Web.Http.Controllers.ActionFilterResult.<>c__DisplayClass10`1.<InvokeActionWithActionFilters>b__f()↵↓ à Qlik.NPrinting.WebEngine.License.LicenseHandler.ExecuteActionFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func`1 continuation) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\License\LicenseHandler.cs:ligne 45↵↓ à System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()↵↓ à System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)↵↓ à System.Web.Http.Controllers.ActionFilterResult.ExecuteAsync(CancellationToken cancellationToken)↵↓ à System.Web.Http.ApiController.ExecuteAsync(HttpControllerContext controllerContext, CancellationToken cancellationToken)↵↓ à System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()↵↓ à System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)↵↓ à System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ à System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ à System.Web.Http.Dispatcher.HttpRoutingDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ à System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ à Qlik.NPrinting.WebEngine.Audit.AuditHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\Audit\AuditHandler.cs:ligne 28↵↓ à System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ à Qlik.NPrinting.WebEngine.Security.AuthenticationHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\Security\AuthenticationHandler.cs:ligne 110↵↓ à System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ à Qlik.NPrinting.WebEngine.Cors.NpCorsHandler.<>n__0(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ à Qlik.NPrinting.WebEngine.Cors.NpCorsHandler.<>c__DisplayClass13_0.<SendAsync>b__2() dans C:\Jws\release-may2022-Zv2Y0uMG9\server\NPrinting\src\WebEngine\Cors\NpCorsHandler.cs:ligne 142↵↓ à System.Threading.Tasks.Task`1.InnerInvoke()↵↓ à System.Threading.Tasks.Task.Execute()↵↓ à System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)↵↓ à System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)↵↓ à System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)↵↓ à System.Threading.Tasks.Task.ExecuteEntry(Boolean bPreventDoubleExecution)↵↓ à System.Threading.ThreadPoolWorkQueue.Dispatch()↵↓=============↵↓

[Lucas_Gatling · Accepted solution]

@mostal75 take a look at this KB article: https://community.qlik.com/t5/Official-Support-Articles/Qlik-NPrinting-SLK-License-cannot-be-applied...

For whatever reason the License server is unreachable from your NPrinting server. 

[mostal75]

Thanks a lot Lucas but it doesn't resolve my case 

[Lucas_Gatling]

@mostal75  glad to hear! Have a wonderful weekend!

[npapapicco]

Same issue here, fresh installation of NPrinting May2023 SR1. The server has no internet access so I tried to activate delayed sync but the error is the same "The License service is not responding. Restart the Qlik NPrinting License service."

Changed the service account, restart license service but no way to activate NPrinting with delayed sync.

In web engine the error is similar

Qlik.NPrinting.WebEngine 23.20.3.0 Qlik.NPrinting.WebEngine.Controllers.HttpHelper 20231011T110214.550+02:00 ERROR omissis nprintingadmin 0 0 0 0 0 0 0 0 Service exception serving the request http://omissis:4996/npe/license Qlik.NPrinting.Repo.ServiceException: License service unreachable↵↓ at Qlik.NPrinting.Repo.Service.License.LicenseSignedKeysConnector.CheckReady(Int32 timeoutMillis) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\Repo\Service\License\LicenseSignedKeysConnector.cs:line 164↵↓ at Qlik.NPrinting.Repo.Service.License.LicenseSignedKeysConnector.SetLicense(String licenseKey, Int32 timeoutMillis) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\Repo\Service\License\LicenseSignedKeysConnector.cs:line 256↵↓ at Qlik.NPrinting.Repo.Service.License.LicenseSignedKeysConnector.SignedKeyLicenseIsValid(String webLicenseSignedKey) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\Repo\Service\License\LicenseSignedKeysConnector.cs:line 246↵↓ at Qlik.NPrinting.Repo.Service.License.LicenseService.<>c__DisplayClass71_0.<ActivateLicense>b__0(ISession session) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\Repo\Service\License\LicenseService.cs:line 224↵↓ at Qlik.NPrinting.Repo.Service.SessionManager.<>c__DisplayClass7_0.<WithSession>b__0(ISession s) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\Repo.Common\Service\SessionManager.cs:line 49↵↓ at Qlik.NPrinting.Repo.Service.SessionManager.WithSession[T](Func`2 body, IsolationLevel isolationLevel, Boolean readOnly) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\Repo.Common\Service\SessionManager.cs:line 76↵↓ at Qlik.NPrinting.Repo.Service.License.LicenseService.ActivateLicense(LicenseActivation activation) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\Repo\Service\License\LicenseService.cs:line 220↵↓ at Qlik.NPrinting.WebEngine.Controllers.LicenseController.<>c__DisplayClass5_0.<Put>b__0() in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\Controllers\LicenseController.cs:line 44↵↓ at Qlik.NPrinting.WebEngine.Controllers.HttpHelper.WithErrorHandling[T](HttpRequestMessage request, String nullMsg, Func`1 body, ApiCrudOperation apiCrudOperation, String locationHeaderApiPath) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\Controllers\HttpHelper.cs:line 124↵↓ ↵↓=============↵↓ at Qlik.NPrinting.Common.Utils.NPLog.Error(String message, Exception ex, NPLoggingContext loggingContext) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\NPLogging\NPLog.cs:line 177↵↓ at Qlik.NPrinting.WebEngine.Controllers.HttpHelper.WithErrorHandling[T](HttpRequestMessage request, String nullMsg, Func`1 body, ApiCrudOperation apiCrudOperation, String locationHeaderApiPath) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\Controllers\HttpHelper.cs:line 124↵↓ at Qlik.NPrinting.WebEngine.Controllers.LicenseController.Put(License webLicense) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\Controllers\LicenseController.cs:line 36↵↓ at lambda_method(Closure , Object , Object[] )↵↓ at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters)↵↓ at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary`2 arguments, CancellationToken cancellationToken)↵↓ at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()↵↓ at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)↵↓ at System.Web.Http.Controllers.ApiControllerActionInvoker.InvokeActionAsyncCore(HttpActionContext actionContext, CancellationToken cancellationToken)↵↓ at System.Web.Http.Controllers.ApiControllerActionInvoker.InvokeActionAsync(HttpActionContext actionContext, CancellationToken cancellationToken)↵↓ at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>b__0(ActionInvoker innerInvoker)↵↓ at System.Web.Http.Controllers.ActionFilterResult.<>c__DisplayClass10`1.<InvokeActionWithActionFilters>b__f()↵↓ at Qlik.NPrinting.WebEngine.License.LicenseHandler.ExecuteActionFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func`1 continuation) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\License\LicenseHandler.cs:line 50↵↓ at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()↵↓ at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)↵↓ at System.Web.Http.Controllers.ActionFilterResult.ExecuteAsync(CancellationToken cancellationToken)↵↓ at System.Web.Http.ApiController.ExecuteAsync(HttpControllerContext controllerContext, CancellationToken cancellationToken)↵↓ at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()↵↓ at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1.Start[TStateMachine](TStateMachine& stateMachine)↵↓ at System.Web.Http.Dispatcher.HttpControllerDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ at System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ at System.Web.Http.Dispatcher.HttpRoutingDispatcher.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ at Qlik.NPrinting.WebEngine.Audit.AuditHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\Audit\AuditHandler.cs:line 20↵↓ at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ at Qlik.NPrinting.WebEngine.Security.AuthenticationHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\Security\AuthenticationHandler.cs:line 106↵↓ at System.Net.Http.DelegatingHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)↵↓ at Qlik.NPrinting.WebEngine.Cors.NpCorsHandler.<>c__DisplayClass13_0.<SendAsync>b__2() in C:\Jws\release-may2023-2LG4NHuu6\server\NPrinting\src\WebEngine\Cors\NpCorsHandler.cs:line 142↵↓ at System.Threading.Tasks.Task`1.InnerInvoke()↵↓ at System.Threading.Tasks.Task.Execute()↵↓ at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)↵↓ at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)↵↓ at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)↵↓ at System.Threading.Tasks.Task.ExecuteEntry(Boolean bPreventDoubleExecution)↵↓ at System.Threading.ThreadPoolWorkQueue.Dispatch()↵↓=============↵↓

I think that Lucas_Gatling didn't realize that Mosta75' issue was not resoved.

Any other advise on this?

Regards 

[Frank_S · Accepted solution]

Check these articles for possible solutions.

https://community.qlik.com/t5/Official-Support-Articles/NPrinting-Server-License-Service-Will-Not-St...

https://help.qlik.com/en-US/nprinting/May2023/Content/NPrinting/DeployingQVNprinting/Offline-licensi...