# Nextcloud connects fine to CODE docker container but can't open any documents

**URL:** <https://forum.collaboraonline.com/t/nextcloud-connects-fine-to-code-docker-container-but-cant-open-any-documents/2415>\
**Category:** Installation & Configuration\
**Created:** [February 26, 2024, 3:23pm UTC](https://forum.collaboraonline.com/t/nextcloud-connects-fine-to-code-docker-container-but-cant-open-any-documents/2415 "2024-02-26T15:23:19Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Tex](https://avatars.discourse-cdn.com/v4/letter/t/eb8c5e/32.png) [@Tex](https://forum.collaboraonline.com/u/Tex)\
**Post date:** [February 29, 2024, 12:29am UTC](https://forum.collaboraonline.com/t/nextcloud-connects-fine-to-code-docker-container-but-cant-open-any-documents/2415/3 "2024-02-29T00:29:10Z")

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Hi @nicolas_thg. Welcome to the forums + thanks for the question and all the info.

* * *

Since your first topic had more info, I:

- Merged both “duplicate” topics together.

(And sorry about that, your very first post was stuck in the mod queue. It’s all approved now.)

* * *

> [@nicolas\_thg](#):
>
> The nextcloud instance connects properly to the collabora server, however, when I try to open a document, I get the following error:
> 
> `Failure to establish a per-socket connection or an unexpected closing of the per-socket connection. The reverse proxy could be misconfigured, please contact the administrator.`

> [@nicolas\_thg](#):
>
> In the Collabora docker container, I have the following error (multiple times, for multiple files) :
> 
> ```auto
> code | wsd-00001-00031 2024-02-27 12:21:28.566096 +0000 [websrv_poll] ERR FileServerRequestHandler: File not found: Invalid URI request: [/browser/619c3e6/images/savemodified_large.svg].| wsd/FileServer.cpp:748
> 
> ```

Hmmm…

Q1. Did you check out the helpful “checklist” on the Nextcloud forums?

- [Nextcloud Forums: “Collabora Integration Guide”](https://help.nextcloud.com/t/collabora-integration-guide/151879)

And:

Q2. What version of Nextcloud + richdocuments are you running?

So you have:

- Debian 12
- PHP 8.2
- Nextcloud ??.??
- richdocuments ??.??
- Collabora ??.??

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_[View the full topic](https://forum.collaboraonline.com/t/nextcloud-connects-fine-to-code-docker-container-but-cant-open-any-documents/2415)._