Support intro
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 (eg, 20.0.5): 22.1.0
Operating system and version (eg, Ubuntu 20.04): Ubuntu 20.04
Apache or nginx version (eg, Apache 2.4.25): 2.4
PHP version (eg, 7.4): 7.4.3
The issue you are facing: When syncing if virtual files are enabled I get the no etag error
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
- Outside my network
- run sync with virtual files enabled
- get error
The output of your Nextcloud log in Admin > Logging:
Fatal webdav Sabre\DAV\Exception\ServiceUnavailable:
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Tree.php - line 78:
OCA\DAV\Connector\Sabre\Directory->getChild()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 971:
Sabre\DAV\Tree->getNodeForPath()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 1661:
Sabre\DAV\Server->getPropertiesIteratorForPath()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 1646:
Sabre\DAV\Server->writeMultiStatus()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php - line 346:
Sabre\DAV\Server->generateMultiStatus()
/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php - line 89:
Sabre\DAV\CorePlugin->httpPropFind()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 472:
Sabre\DAV\Server->emit()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 253:
Sabre\DAV\Server->invokeMethod()
/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php - line 321:
Sabre\DAV\Server->start()
/var/www/nextcloud/apps/dav/lib/Server.php - line 333:
Sabre\DAV\Server->exec()
/var/www/nextcloud/apps/dav/appinfo/v2/remote.php - line 35:
OCA\DAV\Server->exec()
/var/www/nextcloud/remote.php - line 166:
require_once("/var/www/ne ... p")
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
<?php
$CONFIG = array (
'instanceid' => '',
'passwordsalt' => '',
'secret' => '',
'trusted_domains' =>
array (
0 => '',
1 => '',
),
'datadirectory' => '/mnt/NCdata',
'dbtype' => 'mysql',
'version' => '22.1.0.1',
'overwrite.cli.url' => '',
'dbname' => 'nextcloud',
'dbhost' => '',
'dbport' => '',
'dbtableprefix' => 'oc_',
'mysql.utf8mb4' => true,
'dbuser' => 'oc_dennis4',
'dbpassword' => '',
'installed' => true,
'memcache.local' => '\\OC\\Memcache\\Redis',
'memcache.distributed' => '\\OC\\Memcache\\Redis',
'redis' =>
array (
'host' => '127.0.0.1',
'port' => 6379,
),
'default_phone_region' => 'NL',
'maintenance' => False,
'theme' => '',
'loglevel' => 2,
'mail_smtpmode' => 'smtp',
'mail_sendmailmode' => 'pipe',
'mail_from_address' => '',
'mail_domain' => '',
'mail_smtpauthtype' => 'LOGIN',
'mail_smtpauth' => 1,
'mail_smtpport' => '25',
'mail_smtpname' => '',
'mail_smtppassword' => '',
'mail_smtphost' => '',
'updater.secret' => '',
'trusted_proxies' => ['192.168.1.1'],
'overwriteprotocol' => 'https',
);
I think it has something to do with the bein external ie. haproxy. Anyone a clue?
Thanks!