topic Re: Nprinting Connection issue in Qlik NPrinting

Nprinting Connection issue

Asha — Wed, 25 Sep 2019 18:40:54 GMT

Hi,

We are using Nprinting Nov 2018 version and Qliksense Sep 2018.

We had to reinstall Qliksense, from when the connection to it is throwing errors as shown in the picture below

I tired re importing the certificates but it did not help.

I did open the required ports in both QlikSense Server and Nprinting Server and we have Nprinting Server and Engine installed in same machine.

This could be an issue from Qliksense server as it was working fine till it got reinstalled. But not sure what exactly I need to check.

Please let me know if anyone has come across this issue.

Thanks,
Asha

Re: Nprinting Connection issue

Frank_S — Wed, 03 Apr 2019 15:10:09 GMT

1. Make sure that port 4242 is open as mentioned here
https://help.qlik.com/en-US/nprinting/February2019/Content/NPrinting/DeployingQVNprinting/Ports.htm
2. Make sure that the computer name used in the certificate export is the Qlik Sense server central proxy node. This should be the same address used in the NPrinting Connection to the Qlik Sense server as well.
3. When you perform the certificate import using the QMCcertificateInstaller tool, make sure you are logged on as the NP service account. If you cannot log on as the NP service account, do hold down 'shift>rightclick' and 'Run as a different user' then enter the NPrinting service account credentials to accurately import the certificates. If requested to remove certificates during the next steps, click 'yes' or 'ok'.

Re: Nprinting Connection issue

nomananjum — Wed, 03 Apr 2019 15:49:40 GMT

Dear Asha,

Have you tried the Same version of Qlik sense and Qlik NPrinting?

I have faced the same issue with my nprinting , Then i have downgraded it with the same version of Qlik sense its starts working.

Hope it will help

Re: Nprinting Connection issue

Asha — Wed, 03 Apr 2019 15:52:09 GMT

Thanks for the response Frank.
I did follow the instruction you mentioned above and still the issue persists.

I just noticed that I'm not able to access Qliksense from Nprinting machine,able to access it from serevr and other machines but not on Nprinting Machine, not sure if it has to do something with this issue.

Re: Nprinting Connection issue

Frank_S — Thu, 04 Apr 2019 18:11:00 GMT

Please check with your network team and show them the issues you are experiencing. That point you made will in most cases impact your communication between NPrinting and Qlik Sense server and may indeed be the cause of the issue.

*Make sure the check the ports are in fact open with your security/firewall team...both computer and network firewalls should be adjusted accordingly*

https://help.qlik.com/en-US/nprinting/February2019/Content/NPrinting/DeployingQVNprinting/Ports.htm

Re: Nprinting Connection issue

Asha — Wed, 03 Apr 2019 17:02:07 GMT

Thanks for the information Frank!
I will check with the team and see if this resolves the issue.

Re: Nprinting Connection issue

Lech_Miszkiewicz — Wed, 03 Apr 2019 23:37:34 GMT

well - before reinstalling certificates you have first export them again from new Qlik Sense server (since it was re-installed). Did you do this step?

All errors are described in help.qlik.com so just start looking for answers there.

Re: Nprinting Connection issue

Asha — Thu, 04 Apr 2019 14:46:28 GMT

Thanks for you response Lech.
Yes I did export from Qliksense Server after installation

Re: Nprinting Connection issue

Asha — Thu, 04 Apr 2019 14:54:08 GMT

Hi Frank,
Thanks for your prompt responses.
We were able to fix this issue. As we are hosting Nprinting on AWS, Qliksense central node's security group was not allowing outbound traffice for the ip range that NPrinting was in. After updating the security group it got fixed.

Thanks,
Asha