# Sync Client with wrong Hashing Constraints V4

**URL:** <https://forum.pydio.com/t/sync-client-with-wrong-hashing-constraints-v4/5551>\
**Category:** Sync Client\
**Created:** [October 25, 2023, 2:17pm UTC](https://forum.pydio.com/t/sync-client-with-wrong-hashing-constraints-v4/5551 "2023-10-25T14:17:21Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![OverClocked](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/overclocked/32/2167_2.png) [@OverClocked](https://forum.pydio.com/u/OverClocked)\
**Post date:** [October 25, 2023, 2:17pm UTC](https://forum.pydio.com/t/sync-client-with-wrong-hashing-constraints-v4/5551/1 "2023-10-25T14:17:21Z")

</div>

I installed cells with the Ubuntu/Debian how-to at: [here](https://pydio.com/en/docs/kb/deployment/install-cells-debianubuntu) I am using Cells V4.3.0 Home Edition

So there is no Apache. I read on the Cells-Sync setup that it needed http/2 to work - however I do not know how to enable that mod if I don’t have Apache installed.

My client is Windows 10. I am behind a LE SSL. Server(cloud) works great, and my mobile app works flawlessly. I am just having difficulty getting my desktop app(sync client) to work properly.

I am able to make the connection, however I cannot refresh or display any workspaces. There is a red X next to the server showing it is having an error.

What set up alterations do I need to perform to get this working properly? I installed the windows Cells Sync from [here](https://pydio.com/en/docs/cells/v2/connect-desktop-sync)

---

<div class="post-metadata">

**Author:** ![bsinou](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/bsinou/32/476_2.png) [@bsinou](https://forum.pydio.com/u/bsinou)\
**Post date:** [October 26, 2023, 6:26am UTC](https://forum.pydio.com/t/sync-client-with-wrong-hashing-constraints-v4/5551/2 "2023-10-26T06:26:36Z")

</div>

Hi.

are the sync client and cells “speaking directly” or is there a reverse proxy inbetween ?

do you see any logs ?

---

<div class="post-metadata">

**Author:** ![OverClocked](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.pydio.com/overclocked/32/2167_2.png) [@OverClocked](https://forum.pydio.com/u/OverClocked)\
**Post date:** [October 26, 2023, 2:52pm UTC](https://forum.pydio.com/t/sync-client-with-wrong-hashing-constraints-v4/5551/3 "2023-10-26T14:52:30Z")

</div>

They are speaking directly. There is not a proxy.

The error I pasted above is from the Cells Console.

Its confusing to me because the Cells server does not have Apache installed - The documentation I followed in the first link didn’t say to install apache, it just needs the Cells service to be running. So would I need to install Apache for the client to work, or?

I am able to authenticate, the OAuth works, but after that it wont show me workspaces, files, or anything and it shows the server has a red X on it as though it’s not getting a response.