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Sorry to hear you’re facing problems 
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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version 24.0.6
Operating system and version (eg, Ubuntu 20.04): Ubuntu 22.04
Apache or nginx version (eg, Apache 2.4.25): Apache/2.4.52 (Ubuntu)
PHP version (eg, 7.4): PHP Version 8.1.2
The issue you are facing:
Uploading file with size over 2 GB via web is no problem but whenever i try to sync the same file using the windows sync client i receive a “Connection Closed” and client goes offline.
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
- Sync folder that has file with size over 1 GB
The output of your Nextcloud log in Admin > Logging:
N/A
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => 'oc7x8b3bihwz',
'passwordsalt' => 'xxx',
'secret' => 'xxx',
'trusted_domains' =>
array (
0 => '192.168.0.50',
),
'datadirectory' => '/var/www/nextcloud/data',
'dbtype' => 'mysql',
'version' => '24.0.6.1',
'overwrite.cli.url' => 'http://192.168.0.50',
'dbname' => 'nextcloud',
'dbhost' => 'localhost',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'nextcloud',
'dbpassword' => 'mypassword',
'installed' => true,
'activity_expire_days' => 3650,
'default_phone_region' => 'ID',
'memcache.local' => '\\OC\\Memcache\\Redis',
'memcache.distributed' => '\\OC\\Memcache\\Redis',
'memcache.locking' => '\\OC\\Memcache\\Redis',
'filelocking.enabled' => 'true',
'redis' =>
array (
'host' => '/var/run/redis/redis-server.sock',
'port' => 0,
'timeout' => 0.0,
),
'app_install_overwrite' =>
array (
0 => 'issuetemplate',
),
);
The output of your Apache/nginx/system log in /var/log/____:
[Fri Oct 14 02:56:38.339505 2022] [proxy_fcgi:error] [pid 23655:tid 140516939937344] (70008)Partial results are valid but processing is incomplete: [client 192.168.0.117:51305] AH01075: Error dispatching request to : (reading input brigade)
[Fri Oct 14 02:56:47.910669 2022] [proxy_fcgi:error] [pid 23655:tid 140516931544640] (70007)The timeout specified has expired: [client 192.168.0.117:51308] AH01075: Error dispatching request to : (reading input brigade)
[Fri Oct 14 04:23:55.349069 2022] [access_compat:error] [pid 24438:tid 140564708173376] [client 192.168.0.116:53588] AH01797: client denied by server configuration: /var/www/nextcloud/data/.ocdata
[Fri Oct 14 05:51:03.446194 2022] [proxy_fcgi:error] [pid 24438:tid 140565152790080] (70007)The timeout specified has expired: [client 192.168.0.117:50248] AH01075: Error dispatching request to : (reading input brigade)
[Fri Oct 14 05:51:03.550389 2022] [proxy_fcgi:error] [pid 24439:tid 140564666242624] (70007)The timeout specified has expired: [client 192.168.0.117:50246] AH01075: Error dispatching request to : (reading input brigade)
[Fri Oct 14 06:26:17.088624 2022] [access_compat:error] [pid 24438:tid 140565144397376] [client 192.168.0.116:56415] AH01797: client denied by server configuration: /var/www/nextcloud/data/.ocdata
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
No log entry has produce