topic Re: Nprinting connection error after upgrade in Qlik NPrinting

Nprinting connection error after upgrade

Anonymous — Wed, 22 Nov 2017 12:03:41 GMT

Hi All

Hope someone can help me with a problem that occured after last upgrade.

Upgrade seem to go fine, but after upgrade we have a connection error. When I try to update connections or make new connections we are not able to run verification and this is the point not where the error occure:

"All Qlik Sense engines are reachable from the Qlik NPrinting Engine computers."

When I check the nprinting_engine log I can see this error:
"Engine.Navigator.QlikSense.SDK 1.0.0.0 Engine.Navigator.QlikSense.QlikSenseDiagnose 20171122T111330.193+01:00 ERROR QSPRINT 0 0 0 0 0 0 0 0 *** PerformDiagnosis found a problem: Valid Sense Engine qse is not reachable on port 4747."

Firewalls and ports are not my strong area, but we have added port 4747 inbound on the server where Qlik Sense is installed and outbound on the server where NPrinting is installed. Also under domain profile the Firewall is off on both servers.

Anyone got any ideas what to do next?

Thanks,

Britt Karin

Re: Nprinting connection error after upgrade

Lech_Miszkiewicz — Wed, 22 Nov 2017 12:31:54 GMT

so what did you actualy upgrade?

did you export qliksense certificates afterwards again? you better do this.

regards

Lech

Re: Nprinting connection error after upgrade

Anonymous — Wed, 22 Nov 2017 12:34:49 GMT

Sorry, I see I didn't say what the upgrade was.

We upgraded Nprinting to nov 17 version, and yes, we did export the qlik sense certificates afterwards.

Don't know if it's relevant, but Qlik Sense is also upgraded to Nov 17 version.

Re: Nprinting connection error after upgrade

Lech_Miszkiewicz — Wed, 22 Nov 2017 12:38:36 GMT

Just perform simple test:

Remote desktop to NPrinting Engine Box as NPrinting account user
open web browser and navigate to Qlik Sense hub
see if you can open any document from there?

let me know what are the results of this test...

Re: Nprinting connection error after upgrade

Lech_Miszkiewicz — Wed, 22 Nov 2017 12:40:09 GMT

just to be clear - i just want to make sure you can open a qlik sense document fronm NPrinting BOX... also if you are able to open a document try to export data as an image and as a table (data - export to excel)...

Re: Nprinting connection error after upgrade

Anonymous — Wed, 22 Nov 2017 12:46:56 GMT

Yes, I am able to log on with NPrinting account user and can open Qlik Sense Hub. Can also open document and export table from report to image and excel.

Re: Nprinting connection error after upgrade

Lech_Miszkiewicz — Wed, 22 Nov 2017 13:14:36 GMT

Ok. So we covered the basics.

What about even more basic thing-are all NPrinting services running?

It happen to me few times that scheduler did not start...

Re: Nprinting connection error after upgrade

Anonymous — Wed, 22 Nov 2017 13:30:49 GMT

Yes, all services seems to be running:

Re: Nprinting connection error after upgrade

silvacarlos — Wed, 22 Nov 2017 13:54:08 GMT

Can you acces to NPrinting box from Qlik Sense box?

Maybe is a SSL certificate issue? (safety warnings during navigation)

Re: Nprinting connection error after upgrade

Anonymous — Thu, 23 Nov 2017 07:07:14 GMT

Yes, I'm able to access Nprinting box from Qlik Sense box, no issues there.

Re: Nprinting connection error after upgrade

Hatus — Fri, 24 Nov 2017 09:27:46 GMT

To solve this issue you must install Qlik Sense certificates on Qlik NPrinting computers to be able to:

Create connections from Qlik NPrinting to Qlik Sense apps.Certificates must be installed on all Qlik NPrinting engine computers to create connections to Qlik Sense apps.

Look into this video guide Setting up environments to enable Qlik NPrinting to Connect to Qlik Sense - YouTube

Let me know if this worked for you.

Regards

Re: Nprinting connection error after upgrade

Anonymous — Fri, 24 Nov 2017 11:09:01 GMT

I already did that, but looked at the video and did it all again in case I missed something. But with same results when I run verification on the connection:

Thanks a lot for all suggetions, I'll keep trying

Re: Nprinting connection error after upgrade

Lech_Miszkiewicz — Fri, 24 Nov 2017 11:14:09 GMT

This just guess

do you want to try re-instate Root Admin rights for NPrinting service account in user settings in Qlik Sense QMC maybe?

regards

Lech

Re: Nprinting connection error after upgrade

Anonymous — Fri, 24 Nov 2017 11:20:47 GMT

I removed the rights and put it back, but no change. All guesses are welcome!

regards

Britt Karin

Re: Nprinting connection error after upgrade

Lech_Miszkiewicz — Fri, 24 Nov 2017 11:25:33 GMT

so another quess.. you know how you are saying that you have re-installed Qlik Sense certificates. Did you restart NPrinitng services after this (or whole machine)?

Re: Nprinting connection error after upgrade

Anonymous — Fri, 24 Nov 2017 11:35:51 GMT

I tried both with no success.

Re: Nprinting connection error after upgrade

Lech_Miszkiewicz — Fri, 24 Nov 2017 11:39:18 GMT

I just looked up in help document the error you are getting. It says:

Verify that the Qlik Sense proxy address is correct and no firewalls are preventing the Qlik NPrinting Engine from reaching the Qlik Sense Engine service. This Qlik Sense Engine service usually uses port 4747 (either on the Qlik Sense central node, or on dedicated Qlik Sense Engine nodes). This port can be configured in the Qlik Management Console (QMC).

Qlik NPrinting and Qlik Sense must be installed in the same domain. Verify in Qlik Sense Qlik Management Console (QMC) that the user who is running the Qlik NPrinting Engine service is in the RootAdmin group.

SO i guess you have covered everything.. Did we check if it is all in the same domain?

Re: Nprinting connection error after upgrade

Anonymous — Fri, 24 Nov 2017 12:09:18 GMT

Yes, I've seen this too and tried to go over everything here and it is all in the same domain. But I guess there is something I'm not seeing. I also uninstalled everything and did it over again since we have just been testing a little until now. Installed it all again with same result. Search continues, will let you know if I figure it out.

Re: Nprinting connection error after upgrade

eightieschild — Mon, 27 Nov 2017 12:13:04 GMT

Hi Britt Karin

Just another small test you might want to try - can you disable the Windows firewall on both NP and QS servers?

This may confirm whether its a port/comms issue or not.

If still not connecting, can you confirm with your IT support guys whether there are any network level VLAN/firewall/routing comms restrictions between the two servers?

Also, is your QS engine is on the same node as your QS proxy?

Kind regards

Chris

Re: Nprinting connection error after upgrade

Anonymous — Mon, 27 Nov 2017 12:54:14 GMT

Hi Chris,

The firewall is disabled on both NP and QS servers, and I've been told there shouldn't be any restrrictions between servers.

The QS engine and the QS proxy is on the same node.

regards

Britt Karin