# Cells Sync: Error: "Access Denied."

**URL:** <https://forum.pydio.com/t/cells-sync-error-access-denied/4429>\
**Category:** Sync Client\
**Tags:** linux\
**Created:** [April 5, 2022, 9:35am UTC](https://forum.pydio.com/t/cells-sync-error-access-denied/4429 "2022-04-05T09:35:52Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![dpat](https://avatars.discourse-cdn.com/v4/letter/d/87869e/32.png) [@dpat](https://forum.pydio.com/u/dpat)\
**Post date:** [April 5, 2022, 9:35am UTC](https://forum.pydio.com/t/cells-sync-error-access-denied/4429/1 "2022-04-05T09:35:52Z")

</div>

I am running:

- Client OS : Linux Debian/bullseye (Debian 11)
- Client version: cells-sync v0.9.2
- Pydio Server OS and version: Debian/bullseye + Docker with Pydio Cells v3.0.5 ([pydio/cells:3.0.5](https://hub.docker.com/r/pydio/cells/tags))
- It’s a synchronization process issue

I encountered this problem:

```auto
2022-04-04T17:10:12.464+0200 ERROR sync-task Error while transferring file {"NodePath": "oebm/Intervision/Intervision_Edelmann-Beratung.pdf", "target": "https://archiv.example.com/lw"}
2022-04-04T17:10:12.464+0200 ERROR sync-task Status: Error while transferring file (Access Denied.) - retrying...
2022-04-04T17:10:17.885+0200 INFO sync-task Transferred file {"NodePath": "oebm/Intervision/Intervision_Edelmann-Beratung.pdf", "target": "https://archiv.example.com/lw"}
2022-04-04T17:10:17.885+0200 ERROR sync-task Patch ended with errors {"count": 2}
2022-04-04T17:10:17.886+0200 ERROR sync-task --- Error {"error": "Access Denied.", "target": "https://archiv.example.com/lw"}
2022-04-04T17:10:17.886+0200 ERROR sync-task --- Error {"error": "Access Denied.", "target": "https://archiv.example.com/lw"}
2022-04-04T17:10:17.892+0200 INFO sync-task Got Stats for fs:///home/jkirk/Documents/lw {"stats": {"HasChildrenInfo":true,"HasSizeInfo":true,"Size":5558662913,"Folders":191,"Files":2798}}
2022-04-04T17:10:17.922+0200 INFO sync-task Got Stats for https://archiv.example.com/lw {"stats": {"HasChildrenInfo":true,"HasSizeInfo":true,"Size":5555789200,"Folders":170,"Files":2736}}
2022-04-04T17:10:17.922+0200 INFO sync-task Stats after running patch
2022-04-04T17:10:17.922+0200 ERROR sync-task Processing ended with 2 errors!

```

Cells-Sync remains in an error state:

 ![screenshot_20220405T113116](https://canada1.discourse-cdn.com/flex032/uploads/pydio/original/2X/8/809a1765b7e7bec229b1fbea7a52125c1a590971.png)

The file got uploaded (I can see and access it on the server) and the file in question is only 24k.

There is a similar problem, but there the webfronted seems to be used whereas we use the Cells-Sync client:

> [@PYDIO cells "Upload Failed: Access Denied"](https://forum.pydio.com/t/pydio-cells-upload-failed-access-denied/3410):
>
> Hi Team, I am trying to upload a 3GB file (using multipart upload), at the end of the upload an error message is popping up: Upload Failed: Access Denied. Please help. Regards, MK

---

<div class="post-metadata">

**Author:** ![charles](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/charles/32/3_2.png) [@charles](https://forum.pydio.com/u/charles)\
**Post date:** [April 15, 2022, 11:00am UTC](https://forum.pydio.com/t/cells-sync-error-access-denied/4429/2 "2022-04-15T11:00:03Z")

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Hi,  
Do you have a reverse-proxy of some sorts in front of Cells ?

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<div class="post-metadata">

**Author:** ![dpat](https://avatars.discourse-cdn.com/v4/letter/d/87869e/32.png) [@dpat](https://forum.pydio.com/u/dpat)\
**Post date:** [April 20, 2022, 12:11am UTC](https://forum.pydio.com/t/cells-sync-error-access-denied/4429/3 "2022-04-20T00:11:45Z")

</div>

Yes, I am running Cells behind an [Apache reverse proxy](https://pydio.com/en/docs/kb/deployment/running-cells-behind-apache-reverse-proxy).

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<div class="post-metadata">

**Author:** ![dpat](https://avatars.discourse-cdn.com/v4/letter/d/87869e/32.png) [@dpat](https://forum.pydio.com/u/dpat)\
**Post date:** [April 23, 2022, 6:35pm UTC](https://forum.pydio.com/t/cells-sync-error-access-denied/4429/4 "2022-04-23T18:35:21Z")

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@charles Is that a problem? Should I avoid that?