Steps to reproduce
1. Set up owncloud on Linux (Debian 8)
2. Set up user (owncloudaccessuser) for e.g
3. Give permission on folders to be accessed (Windows Server 2008R2) and set SMB/CIFS shares in Owncloud (Admin)
4. Some folders are a "junction link" to another folder
5. When launching owncloud Desktop on Windows 10 or 8.1 or 7, it doesn't sync and displays "Error while downloading the list of folders from the server".
6. Checked permissions, deleted external shares, re created, but still not working
Expected behaviour
Should be able to read folders, sync, as user has "Modify" access on folder.
Actual behaviour
displays "Error while downloading the list of folders from the server"
Client configuration
Client version: Version 2.2.4 (build 6408)
Client operating system: Windows 10 Pro
Server configuration
Operating system: Ubuntu 14.04.5 LTS
Web server: Apache/2.4.23
Database: Ver 14.14 Distrib 5.6.31
PHP version: PHP 5.6.24
ownCloud version (see ownCloud admin page): Bitnami ownCloud 9.1.0-0
Updated from an older ownCloud or fresh install: Fresh install
Special configuration (external storage, external authentication, reverse proxy, server-side-encryption):
External storage:
ownCloud log (data/owncloud.log)
{"reqId":"MOj4u6URBm5oy\/pVh5XH","remoteAddr":"41.212.129.123","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\/1.1 503 Storage not available\",\"Exception\":\"Sabre\\DAV\\Exception\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/Server.php(903): OCA\\DAV\\Connector\\Sabre\\ObjectTree->getNodeForPath('SASL Client Alc...')\n#1 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/CorePlugin.php(334): Sabre\\DAV\\Server->getPropertiesForPath('SASL Client Alc...', Array, 1)\n#2 [internal function]: Sabre\\DAV\\CorePlugin->httpPropFind(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))\n#3 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/event\\/lib\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\n#4 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/Server.php(459): Sabre\\Event\\EventEmitter->emit('method:PROPFIND', Array)\n#5 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/Server.php(248): Sabre\\DAV\\Server->invokeMethod(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))\n#6 \\/var\\/www\\/owncloud\\/apps\\/dav\\/appinfo\\/v1\\/webdav.php(56): Sabre\\DAV\\Server->exec()\n#7 \\/var\\/www\\/owncloud\\/remote.php(164): require_once('\\/var\\/www\\/ownclo...')\n#8 {main}\",\"File\":\"\\/var\\/www\\/owncloud\\/apps\\/dav\\/lib\\/Connector\\/Sabre\\/ObjectTree.php\",\"Line\":159,\"User\":\"B609E89E-D06C-4A0F-972C-2ED442014FA9\"}","level":4,"time":"2016-11-09T10:50:47+00:00","method":"PROPFIND","url":"\/remote.php\/webdav\/SASL%20Client%20Alcon%20Global%20Ltd","user":"B609E89E-D06C-4A0F-972C-2ED442014FA9"}
{"reqId":"wLHU0cpI7FUNMRoxNgM+","remoteAddr":"41.212.129.123","app":"PHP","message":"fopen(\/var\/www\/owncloud\/data\/Mike Migale\/files\/ownCloud Manual.pdf): failed to open stream: No such file or directory at \/var\/www\/owncloud\/lib\/private\/Files\/Storage\/Local.php#278","level":3,"time":"2016-11-09T10:50:48+00:00","method":"GET","url":"\/remote.php\/webdav\/ownCloud%20Manual.pdf","user":"B609E89E-D06C-4A0F-972C-2ED442014FA9"}
{"reqId":"wLHU0cpI7FUNMRoxNgM+","remoteAddr":"41.212.129.123","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\/1.1 503 Could not open file\",\"Exception\":\"Sabre\\DAV\\Exception\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/CorePlugin.php(83): OCA\\DAV\\Connector\\Sabre\\File->get()\n#1 [internal function]: Sabre\\DAV\\CorePlugin->httpGet(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))\n#2 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/event\\/lib\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\n#3 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/Server.php(459): Sabre\\Event\\EventEmitter->emit('method:GET', Array)\n#4 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/Server.php(248): Sabre\\DAV\\Server->invokeMethod(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))\n#5 \\/var\\/www\\/owncloud\\/apps\\/dav\\/appinfo\\/v1\\/webdav.php(56): Sabre\\DAV\\Server->exec()\n#6 \\/var\\/www\\/owncloud\\/remote.php(164): require_once('\\/var\\/www\\/ownclo...')\n#7 {main}\",\"File\":\"\\/var\\/www\\/owncloud\\/apps\\/dav\\/lib\\/Connector\\/Sabre\\/File.php\",\"Line\":306,\"User\":\"B609E89E-D06C-4A0F-972C-2ED442014FA9\"}","level":4,"time":"2016-11-09T10:50:48+00:00","method":"GET","url":"\/remote.php\/webdav\/ownCloud%20Manual.pdf","user":"B609E89E-D06C-4A0F-972C-2ED442014FA9"}
{"reqId":"yySOCdCeBTQ3GfcLovT4","remoteAddr":"41.212.129.123","app":"PHP","message":"fopen(\/var\/www\/owncloud\/data\/Mike Migale\/files\/Documents\/Example.odt): failed to open stream: No such file or directory at \/var\/www\/owncloud\/lib\/private\/Files\/Storage\/Local.php#278","level":3,"time":"2016-11-09T10:50:48+00:00","method":"GET","url":"\/remote.php\/webdav\/Documents\/Example.odt","user":"B609E89E-D06C-4A0F-972C-2ED442014FA9"}
{"reqId":"yySOCdCeBTQ3GfcLovT4","remoteAddr":"41.212.129.123","app":"webdav","message":"Exception: {\"Message\":\"HTTP\\/1.1 503 Could not open file\",\"Exception\":\"Sabre\\DAV\\Exception\\ServiceUnavailable\",\"Code\":0,\"Trace\":\"#0 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/CorePlugin.php(83): OCA\\DAV\\Connector\\Sabre\\File->get()\n#1 [internal function]: Sabre\\DAV\\CorePlugin->httpGet(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))\n#2 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/event\\/lib\\/EventEmitterTrait.php(105): call_user_func_array(Array, Array)\n#3 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/Server.php(459): Sabre\\Event\\EventEmitter->emit('method:GET', Array)\n#4 \\/var\\/www\\/owncloud\\/3rdparty\\/sabre\\/dav\\/lib\\/DAV\\/Server.php(248): Sabre\\DAV\\Server->invokeMethod(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))\n#5 \\/var\\/www\\/owncloud\\/apps\\/dav\\/appinfo\\/v1\\/webdav.php(56): Sabre\\DAV\\Server->exec()\n#6 \\/var\\/www\\/owncloud\\/remote.php(164): require_once('\\/var\\/www\\/ownclo...')\n#7 {main}\",\"File\":\"\\/var\\/www\\/owncloud\\/apps\\/dav\\/lib\\/Connector\\/Sabre\\/File.php\",\"Line\":306,\"User\":\"B609E89E-D06C-4A0F-972C-2ED442014FA9\"}","level":4,"time":"2016-11-09T10:50:48+00:00","method":"GET","url":"\/remote.php\/webdav\/Documents\/Example.odt","user":"B609E89E-D06C-4A0F-972C-2ED442014FA9"}
Please paste possible errors in the following code block, see https://central.owncloud.org/t/how-to-find-webserver-or-oc-logfile-enable-php-logfile/808 for more info