"Server communication lost" when opening document

[hfkchristian]

Hi all

We just upgraded our QlikView server, and after that I can't open one of my documents as "open in server" in QlikView Desktop any more. When i try to open it, I can see the objects in the file, but I immediately get the error message "Server communication lost, closing document!" and the document is closed again before I can do anthing with it.

It works on my local computer and on the web. And my other document in the same folder does work as "open in server".

Do you know what could be wrong?

[Sonja_Bauernfeind · Accepted solution]

Hello Christian!

• What version did you upgrade from and to? 
• Is the version of your Desktop client aligned to the server version?

Since only one document is affected, it may have a trigger or on open action that clears selections. Maybe this article (kb 000032202) could be relevant? It basically reads that the version needs to be aligned and that a clear all action can cause the "Server communication lost" message.

[hfkchristian]

I have "on open"-triggers, but it's just a "run macro" and "select in field".Not "clear all".

The Server version is 12.30.20200.0. I thought we had upgraded Desktop too to this version, but I see now that the Desktop version is actually just 12.20.20800.0. I'll see if I can upgrade Desktop too, and try again.

[hfkchristian]

I upgraded Desktop Client, and now it Works. So it was just because of the Version difference. Seems like Desktop and Server always should have the same Version. Thank you!

[Albert_Candelario]

Great!
Thanks for sharing this with us.
enjoy Qlik!