Qlik Help site under the following link:
https://help.qlik.com/en-US/nprinting/17.2/Content/DeployingQVNprinting/System-requirements_server.htm At what point does it fail and what happens? nothing fail What have you tested to solve the issue?

Says the following:

System requirements for Qlik NPrinting Server

This section lists the minimum hardware and software requirements for Qlik NPrinting Server.

The hardware requirements listed on this page are for configurations where each Qlik NPrinting component is installed on a different computer. If you install more than one component (for example, the server and the engine) on the same computer, the minimum hardware requirements increase.

Qlik NPrinting Server can be installed on both physical and virtual machines. In both configurations, virtualized applications are not supported.

Platforms	Microsoft Windows Server 2008 R2 is currently supported only if connections to Qlik Sense are not required. Microsoft Windows Server 2012 Microsoft Windows Server 2012 R2 Only 64-bit architecture is supported.
Processors (CPUs)	Multi-core x64 compatible processors
Memory	8 GB minimum
Disk space	500 MB minimum
Storage	Only Windows, local or shared, storage is supported.

NPrinting 17 and lower versions are not supported on Windows 2016 Server.
In general what is not listed on the help site under the minimal requirements section, is not supported.

NOTE: Windows 2016 server is supported in NPrinting 18.x.x and higher versions. See the following link for details.
https://help.qlik.com/en-US/nprinting/November2018/Content/NPrinting/DeployingQVNprinting/System-requirements_server.htm