NPrinting Server connection to QlikView document is not working

[aniketvasadkar_eq]

Hi All, 

We are facing issue while creating connection in NPrinting to QlikView document on same server using connection type server.

QlikView Version: May 2021 SR2
Qlik Desktop Version: May 2021 SR1 (Thought SR version differs, I had tested with SR2 with same result)
NPrinting Version: Qlik NPrinting May 2021 SR2

QlikView and NPrinting runs on same server and currently we are using local connection and giving windows path to document like "D:\QlikView\Doc.qvw"

If I look into NPrinting Engine logs I get below

Evaluation of step QlikViewQVSMachineIsReachable for connection string navigator=qlikview;documentpath=qvp://hostname/XXXX/Test.qvw;qlikviewversion=12.60.20100 failed. System.Exception: Authentication Failed↵↓↵↓Server stack trace: ↵↓ at QlikTech.NetClient.QvClient.Open()↵↓ at Qlik.QlikView.Interfaces.ServerAPI.QlikViewServer.QvServer..ctor(String host, Mode mode, Boolean https, String ticket) in C:\Jws\release-may2021-QJBWLpX4f\server\NPrinting\src\Engine.Navigator.QlikView\QVx\Qlik.QlikView11\ServerAPI\QlikViewServer.QvServer.cs:line 29↵↓↵↓Exception rethrown at [0]: ↵↓ at 

Main reason to raise this ticket is to avoid below.
Recently we came across issue where we manually changed QVW file(load script change) and then reloaded the document via QMC. After that NPrinting was triggered using Rest API but NPrinting report was not picking latest
data until we reloaded connection metadata.

Thanks
Aniket

[aniketvasadkar_eq]

@Albert_Candelario , Any update on this ?

[Albert_Candelario]

Hello @aniketvasadkar_eq ,

The TLS issue seem odd, as you mentioned that if you use Open in Server and "log on as specified users" it works fine, right?

What authentication is used on QlikView server? Forms, NTLM,..

Cheers,

Albert

[aniketvasadkar_eq]

Hi @Albert_Candelario ,

1.  The TLS issue seem odd, as you mentioned that if you use Open in Server and "log on as specified users" it works fine, right?

>>>> Authentication type is NTLM  & Yes log on as Alternate identity on QlikView desktop works

2. One more development on this front while checking for NPrinting ports we observe nothing is listening on 4997 for which is responsible for "Engine TLS certificates exchange server". Is this anyway connected ?

Thanks

Aniket