I know I am not on the latest version but I had the same issues with nextcloud 10 too. I will try and update to nextcloud 12 towards the weekend but I doubt that will fix the issues.

The problem is the issues are intermittent so I am struggling to figure out the cause.

We are using both your containers on a hosted server and for all these tests I am using the same nextcloud user. The max upload size is set to 10G.

• from home, uploading a 160MB file works with FF and Chrome
• from work,, uploading a 160MB file works with Chrome only (same browser versions as above and there is no outgoing Firewall/Proxy in use)
• a client, from inside his corporate network, can't upload a 160MB file with any browser.

For the test I log on with the client credentials and create a folder. "Sometimes" I then try to enter the folder to upload and I get: "Operation not permitted" and am not able to enter this folder I just created. Logging onto another computer with the same credentials I can enter the folder.

When the 160MB file fails to upload, the upload is aborted with the error: "Connection to server lost".

Any idea what to look into? The nextcloud logs rare not showing any irregularities and neither does the nginx log.