I have a QNAP HS-251+ acting as Owncloud server with version 8.2.7. I have a very basic configuration with 2 users in Windows 10 sharing some folders with Desktop Sync client.
The problem is quite simple, very large files give timeout when you downnload trought sync clients. For example, a zip file of 7 GB is uploaded correctly to the server from user1 PC. You can dowload it from Web version but it always timeout from user2 PC via sync client.
Steps to reproduce
1.Upload file bigger than 4GB
2.Download it from Sync client
Sync clients give a timeout error. After some troubleshooting, i got conclusion that it always happens when my local file reach about 4GB. It have been tested with different PCs Windows
Operating system: QNAP Linux
Web server: Apache
ownCloud version (see ownCloud admin page):8.2.7
Updated from an older ownCloud or fresh install: Updated from 8.0 but it happened also in 8.0
ownCloud log (data/owncloud.log, see https://central.owncloud.org/t/how-to-find-webserver-or-oc-logfile-enable-php-logfile/808): No relevant info in the logs
No special config.
I have tried tuning all timeout and params in the server I have seen over internet but always timeout at 4GB.