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Question

Question

Office Online Server Co-Authoring Sessions in Laserfiche

asked on August 7, 2024

Hi All,

We've recently installed the Office Online Co-Authoring Host for Laserfiche to allow users to collaborate on documents through the web client (this is an on-premise installation).

According to this post, the user's session in the MS Online Server should end when the browser tab is closed. Providing this is the last/only user in the document this should then save the document.

However what we're seeing is that when the user navigates away from the page after making changes to the document (either by closing the tab or clicking the 'back' button in Laserfiche to go back to the folder structure) that the sessions are left open. So once I've opened and closed the document a few times in edit mode I see this:

Is this a setting or something that needs changing in Office Online Server/Laserfiche? It's causing some issues because even thought he document doesn't appear to be locked in Laserfiche, if users try to make a change to it it gives an 'Entry locked' error because there are still sessions open to it through Office Online Server.

Kind regards,
Dan

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Replies

replied on August 7, 2024

Hi Daniel,

I think it'd be best to open a support case for this. Please make sure to include the exact versions of everything, including Laserfiche Server, Web Client, the LF WOPI Host (OOS integration component), and Office Online Server itself.

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replied on November 27, 2025

Good morning Daniel! Did you get this issue resolved in the end or is it still an ongoing issue?

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replied on November 27, 2025

Hey Rob! The issue for us in the end was that the Office Online server was under resourced. Check the minimum hardware requirements for Office online Server and make sure your server meets these :)

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replied on November 27, 2025

Ah good to know, thank for getting back to me! laugh

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replied on November 28, 2025

Also just a heads up Rob, Office Online Server is going end of life next year.

 

https://techcommunity.microsoft.com/blog/officeeos/announcing-the-retirement-for-office-online-server/4462402

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replied on November 28, 2025

Wunderbar! Thanks for the heads up Chris!

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