The Windows "spooler" service in your NPrinting environment has been disabled. Doing so causes NPrinting report execution to fail with a similar error below in the NPrinting Engine log:
Qlik.NPrinting.Engine 21.0.0.0 Qlik.NPrinting.Engine.Consumer.ContentResolver 20210804T142254.673+02:00 WARN SPCH1125 0 0 0 0 0 0 0 0 Navigator stuck or died on connection at Tracker.PDFXChange.IPXCControlEx.get_Printer(String pServerName, String pPrinterName, String pRegKey, String pDevCode)↓↓ at Qlik.Reporting.Printers.QlikPdfPrinter.Win64PrinterFactory.get_Item(String pServerName, String pPrinterName, String pRegKey, String pDevCode)↓↓ at Qlik.Reporting.Printers.QlikPdfPrinter..ctor()↓↓ at Engine.Navigator.QlikView.QV.Resolvers.Contents.SomethingReportNodeRequestResolver`1.PerformPrintWork(QlikViewDocument doc, Dictionary`2 settings, Int32 dpi, Action`1 doPrint, String fileName)
Environment
Security concerns:
Please visit the following article to resolve security issues related to the Windows Spooler service:
Qlik coverage for June 2021 CVE-2021-1675 and CVE-2021-34527 PrintNightmare vulnerabilities
Resolution
It is required to keep the Windows Spooler service enabled on the NPrinting Server/Engine computer to allow NPrinting report to be generated
Cause
The Windows computer Spooler service on the NPrinting Server, Engine computer has been disabled
