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syedabik
Partner - Contributor II
Partner - Contributor II

NPRINTING: Connection page keep 'Buffering' after upgrade

Hello Experts,

Its my first time here. Wanna ask you guys about the issue that i'm facing after doing a version upgrade on NPrinting. So we are upgrading from NPrinting April'18 to Nov'18 by following the steps provided in Qlik Help: https://help.qlik.com/en-US/nprinting/April2018/Content/DeployingQVNprinting/Upgrading-Qlik-NPrintin... The upgrade were successful. 

But, we having issue when we open 'Connection Page' in NPrinting Web Console. The connection created in previous version (Apr'18) didn't show up and the page keep 'buffering' and will stuck there until we restart the services. The issue will remain every time we open the 'Connection Page'. If you experienced this issue before kindly assists. Thank you experts!

connection issue1.png

Regards, 

Syed

6 Replies
Ruggero_Piccoli
Support
Support

Hi,

November 2018 is not latest version. Latest is February 2019. So I suggest to upgrade to February 2019 first.

Then check that all Qlik NPrinting Windows services are up and running. If yes check the logs in order to see if there are error messages.

Best Regards,

Ruggero

 



Best Regards,
Ruggero
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Ruggero_Piccoli
Support
Support

Upgrade to November 2018 or newer

If you are upgrading to April 2019 from September 2018 SR2 included or older version you must:

  • Open port 4997 outbound on Qlik NPrinting Server and inbound on all Qlik NPrinting Engines
  • Reinstall all your Qlik NPrinting Engines and providing a password for certificate exchange
  • Open the Engine manager in the Web Console
  • Open the detail page for each Engine and send the certificate after inserting the same password you used during the engines reinstallation

Qlik NPrinting Engines stay offline until the certificate exchange is performed. Older Engine versions cannot connect to a Qlik NPrinting April 2019 Server



Best Regards,
Ruggero
---------------------------------------------
When applicable please mark the appropriate replies as CORRECT. This will help community members and Qlik Employees know which discussions have already been addressed and have a possible known solution. Please mark threads with a LIKE if the provided solution is helpful to the problem, but does not necessarily solve the indicated problem. You can mark multiple threads with LIKEs if you feel additional info is useful to others.
Frank_S
Support
Support

Hi

Did you by any chance do a restore after the upgrade? If yes, note that it is not necessary to do so. 

Also you will need to revert to your previous state and attempt the upgrade again.

For more information on upgrading NPrinting see the following article. The article includes upgrade steps, system requirement links  and other information about the upgrade process.

https://support.qlik.com/articles/000050323

Hope this helps.

We are just 'like' you and like to be liked when providing a helpful answer. You may also press the 'Solution Accepted' button if an answer provided resolves your question or issue... Cheers!
syedabik
Partner - Contributor II
Partner - Contributor II
Author

Hi Rugerro,

Thanks for your reply.

Please note that we are upgrading to November 2018 from April 2018. 

The upgrade were successful and all Qlik NPrinting Windows services are up and running.

We also had performed certificate exchange in Web Console and the engine is ONLINE. 

But why the connections page keep buffering and freeze the page?

engine running.png

Regards,

Syed

syedabik
Partner - Contributor II
Partner - Contributor II
Author

Hi,

Thank you for the article. We found something interesting from there.

Capture.PNG

Is it necessary to restart the server after upgrade?

Ruggero_Piccoli
Support
Support

Hi,

You are in the case I copied here from the official Release Notes so you must do all steps included the restart of the Windows services. 

Best Regards,

Ruggero



Best Regards,
Ruggero
---------------------------------------------
When applicable please mark the appropriate replies as CORRECT. This will help community members and Qlik Employees know which discussions have already been addressed and have a possible known solution. Please mark threads with a LIKE if the provided solution is helpful to the problem, but does not necessarily solve the indicated problem. You can mark multiple threads with LIKEs if you feel additional info is useful to others.