Desktop client freeze on Ubuntu / Linux Mint in 2025

Hello.

Starting this year our desktop clients slowly stopped working out of the blue. First they had problems synchronizing. Then they started crashing. After multiple reinstalls I am stuck with:

  • 100% 1 core cpu usage through client
  • it starts synchronizing, stops after 2-3 seconds and freezes

Clients: Ubuntu 22.04 (Linux Mint)

grafik

Access to the server via file browser and “Online Accounts” is working fine.

Installed package:
Downgrading to older packages has no effect on the problem.

Thank you alot!
Harry

Hi,
my first idea ist more about Linux-Mint.
is it a snap-paket oder regular?

My strongly recommention is to use the regular *.deb from the Linux-Mint Resources.
regard

1 Like

I was told to source the package from the apt-repository ppa:nextcloud-devs/client

The regular one from the integrated app store worked for around 9 months but now delivers the same symptoms.

maybe the client or the server have trouble with one big file, which not able to sync via your desktop-client.

1 Like

The largest file measures 380 MB (.mp4)
The first synchronization problems came with files around 9-12 MB (.ods)

This is one of the exact moments around a second after startup when the desktop-client freezes:

grafik

Did you try Appimage?
https://github.com/nextcloud-releases/desktop/releases/download/v3.15.3/Nextcloud-3.15.3-x86_64.AppImage

1 Like

AppImage does not freeze. :heavy_check_mark:
AppImage stops working after 1-2s too. :heavy_multiplication_x:

I dug further and there is a huge packet loss in the system.
Client <> Google 0.5%
Client <> Nextcloud 20-40%

Above around 20% packet loss all the clients stop working. Its not clear why but the main question now is the whole packet loss situation.

Package loss occurs between our router and the Proxmox PVE, new cables reduced it from 20-40% to 8-22%. NICs and the main glass fiber router have been replaced too, but the effect seems to be near placebo. Do you guys have experience with such a situation?