Locked: Cannot print PDF documents to network printer

Hi

One of our customers is using Adobe Acrobat Reader DC 2017.009.20044 on a Windows Server 2016 RDSH. Users are not able to print to any network printer out of Adobe Acrobat Reader DC. Acrobat just "swallows" the print job after clicking "Print". There is nothing going to the printer queue. The printers work flawlessly in all other applications.

I enabled the print log (EnablePrintLogging registry key) and that's the output:

472137125 : START: OnFilePrintDoIt

472137125 : START: OnPreparePrinting

472137187 : START: DoPreparePrinting

472140843 : END: DoPreparePrinting

472140859 : END: OnPreparePrinting (dialogCancelled)

472140859 : END: OnFilePrintDoIt

472330906 : START: OnFilePrintDoIt

472330906 : START: OnPreparePrinting

472330937 : START: DoPreparePrinting

472340953 : END: DoPreparePrinting

472340968 : END: OnPreparePrinting (dialogCancelled)

472340968 : END: OnFilePrintDoIt

472345640 : START: OnFilePrintDoIt

472345640 : START: OnPreparePrinting

472345656 : START: DoPreparePrinting

472369625 : END: DoPreparePrinting

472369640 : END: OnPreparePrinting (dialogCancelled)

472369640 : END: OnFilePrintDoIt

472423562 : START: OnFilePrintDoIt

472423562 : START: OnPreparePrinting

472423625 : START: DoPreparePrinting

472426875 : END: DoPreparePrinting

472426890 : END: OnPreparePrinting (dialogCancelled)

472426890 : END: OnFilePrintDoIt

I have no idea what it means. Anybody out there that can help me?

Best regards

Mischa