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Sorry to hear you’re facing problems. 
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Getting help
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Before clicking submit: Please check if your query is already addressed via the following resources:
- Official documentation (searchable and regularly updated)
- How to topics and FAQs
- Forum search
(Utilizing these existing resources is typically faster. It also helps reduce the load on our generous volunteers while elevating the signal to noise ratio of the forums otherwise arising from the same queries being posted repeatedly).
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. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
- 31.0.9
- Operating system and version (e.g., Ubuntu 24.04):
Almalinux 9
- Web server and version (e.g, Apache 2.4.25):
- Apache/2.4.62
- Reverse proxy and version _(e.g. nginx 1.27.2)
replace me
- PHP version (e.g, 8.3):
- PHP 8.2.29
- Client Version:
- 3.17.2, Windows 11
- Is this the first time you’ve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
2 days ago
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
bare metal
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
no.
Summary of the issue you are facing:
Download of larger files are not finishing. There are dozens of larger files that worked fine in the past. The error on the client is ““An unexpected error occurred. Please try syncing again or contact contact your server administrator if the issue continues.”
In the logfile I found “warning nextcloud.sync.networkjob.get C:\Users\User\AppData\Local\Temp\windows-33702\client-building\desktop\src\libsync\propagatedownload.cpp:294 ]: Download choked”
From what I can see is that the temp files in the folder reach the full size of the file to be downloaded.
Log entries
Windows client
These are all the log entries that I could identify as relevant to the file:
https://pastebin.com/DWrBz6m1
There is this line that seems suspicious but I am not sure if that causes it:
Line 4542: 2025-09-28 12:35:37:233 [ info nextcloud.gui.folderwatcher C:\Users\User\AppData\Local\Temp\windows-33702\client-building\desktop\src\gui\folderwatcher.cpp:239 ]: Detected changes in paths: QSet(“E:/Nextcloud/Projects/Wanch Shares/recording/2025/09/.2025-09-27_22-44_00-02.mp4.~1b7c”)
Or is that the deleting of the download temp file only after it already failed?
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
{
"system": {
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"localhost",
"nextcloud.werkraum.hk",
"cloud.thewanch.hk"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "31.0.9.1",
"overwrite.cli.url": "http:\/\/localhost",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"default_phone_region": "HK",
"memcache.local": "\\OC\\Memcache\\APCu",
"filelocking.enabled": true,
"memcache.locking": "\\OC\\Memcache\\Redis",
"memcache.distributed": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 6379,
"timeout": 0,
"password": "***REMOVED SENSITIVE VALUE***"
},
"maintenance": false,
"maintenance_window_start": 5,
"theme": "",
"loglevel": 2,
"log_type": "file",
"logfile": "\/var\/log\/nextcloud\/nextcloud.log",
"mail_smtpmode": "smtp",
"mail_sendmailmode": "smtp",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtpauthtype": "PLAIN",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "465",
"mail_smtpsecure": "ssl",
"data-fingerprint": "b0a4d505483d086847b732861ab2fb9a",
"instanceid": "***REMOVED SENSITIVE VALUE***",
"updater.release.channel": "stable",
"mail_smtpauth": 1,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"app_install_overwrite": [
"news"
],
"memories.db.triggers.fcu": true,
"memories.exiftool_no_local": true,
"memories.vod.path": "\/var\/www\/nextcloud\/public_html\/apps\/memories\/bin-ext\/go-vod-amd64",
"memories.vod.ffmpeg": "\/bin\/ffmpeg",
"memories.vod.ffprobe": "\/bin\/ffprobe"
},
"apps": {
"activity": {
"enabled": "yes",
"installed_version": "4.0.0",
"notify_email_calendar": "0",
"notify_email_calendar_event": "0",
"notify_email_calendar_todo": "0",
"notify_email_comments": "0",
"notify_email_contacts": "0",
"notify_email_file_changed": "0",
"notify_email_group_settings": "1",
"notify_email_public_links": "0",
"notify_email_remote_share": "0",
"notify_email_shared": "0",
"notify_email_systemtags": "0",
"notify_notification_calendar": "0",
"notify_notification_calendar_event": "0",
"notify_notification_calendar_todo": "0",
"notify_notification_comments": "0",
"notify_notification_contacts": "0",
"notify_notification_favorite": "0",
"notify_notification_file_changed": "0",
"notify_notification_file_favorite_changed": "0",
"notify_notification_group_settings": "0",
"notify_notification_personal_settings": "0",
"notify_notification_public_links": "0",
"notify_notification_remote_share": "0",
"notify_notification_security": "1",
"notify_notification_shared": "0",
"notify_notification_systemtags": "0",
"notify_setting_batchtime": "3600",
"notify_setting_self": "0",
"notify_setting_selfemail": "0",
"types": "filesystem"
},
"admin_audit": {
"enabled": "yes",
"installed_version": "1.21.0",
"types": "logging"
},
"announcementcenter": {
"enabled": "no",
"installed_version": "6.5.1",
"types": "logging"
},
"app_api": {
"enabled": "yes",
"installed_version": "5.0.2",
"types": ""
},
"assistant": {
"installed_version": "2.8.0",
"enabled": "yes",
"types": ""
},
"backgroundjob": {
"lastjob": "54295"
},
"bookmarks": {
"installed_version": "15.2.0",
"enabled": "yes",
"types": ""
},
"bruteforcesettings": {
"enabled": "no",
"installed_version": "3.0.0",
"types": ""
},
"calendar": {
"enabled": "yes",
"installed_version": "5.5.5",
"types": ""
},
"camerarawpreviews": {
"enabled": "no",
"installed_version": "0.8.2",
"types": "filesystem"
},
"circles": {
"enabled": "yes",
"installed_version": "31.0.0",
"loopback_tmp_scheme": "http",
"maintenance_run": "0",
"maintenance_update": "{\"maximum\":4,\"3\":1759032912,\"2\":1759035993,\"1\":1759035993,\"5\":1642391145,\"4\":1659069033}",
"migration_22": "1",
"migration_22_1": "1",
"migration_run": "1",
"types": "filesystem,dav"
},
"cloud_federation_api": {
"enabled": "yes",
"installed_version": "1.14.0",
"types": "filesystem"
},
"comments": {
"enabled": "yes",
"installed_version": "1.21.0",
"types": "logging"
},
"contacts": {
"enabled": "yes",
"installed_version": "7.3.2",
"types": "dav"
},
"contactsinteraction": {
"enabled": "yes",
"installed_version": "1.12.0",
"types": "dav"
},
"context_chat": {
"installed_time": 1737510100,
"providers": "{\"files__default\":{\"isInitiated\":true,\"classString\":\"\"},\"bookmarks__bookmarks\":{\"isInitiated\":true,\"classString\":\"OCA\\\\Bookmarks\\\\ContextChat\\\\ContextChatProvider\"}}",
"installed_version": "4.5.0",
"enabled": "yes",
"types": "",
"last_indexed_file_id": 903978,
"last_indexed_time": 0,
"indexed_files_count": "0"
},
"core": {
"backgroundjobs_mode": "cron",
"emailTestSuccessful": "1",
"files_metadata_installed": "1",
"installedat": "1638599176.6249",
"lastcron": 1759035994,
"lastupdateResult": "[]",
"lastupdatedat": 1759035529,
"metadataGenerationDone": true,
"moveavatarsdone": "yes",
"newUser.sendEmail": "no",
"previewsCleanedUp": "1",
"public_files": "files_sharing\/public.php",
"public_webdav": "dav\/appinfo\/v1\/publicwebdav.php",
"shareapi_default_expire_date": "yes",
"shareapi_default_internal_expire_date": "yes",
"shareapi_default_remote_expire_date": "yes",
"shareapi_enable_link_password_by_default": "no",
"shareapi_enforce_links_password": "no",
"shareapi_internal_expire_after_n_days": "30",
"shareapi_remote_expire_after_n_days": "30",
"theming.variables": "b92d206521717ac032f8aa58d3c7ff2f",
"updater.secret.created": 1757679025,
"vendor": "nextcloud",
"shareapi_only_share_with_group_members": "yes",
"shareapi_enabled": "yes",
"shareapi_default_permissions": "1",
"shareapi_allow_resharing": "no",
"shareapi_allow_group_sharing": "yes",
"shareapi_expire_after_n_days": "30",
"shareapi_restrict_user_enumeration_to_group": "yes",
"files_metadata": {
"photos-original_date_time": {
"value": null,
"type": "int",
"etag": "",
"indexed": true,
"editPermission": 0
},
"photos-size": {
"value": null,
"type": "array",
"etag": "",
"indexed": false,
"editPermission": 0
},
"photos-exif": {
"value": null,
"type": "array",
"etag": "",
"indexed": false,
"editPermission": 0
},
"photos-ifd0": {
"value": null,
"type": "array",
"etag": "",
"indexed": false,
"editPermission": 0
},
"photos-gps": {
"value": null,
"type": "array",
"etag": "",
"indexed": false,
"editPermission": 0
},
"photos-place": {
"value": null,
"type": "string",
"etag": "",
"indexed": true,
"editPermission": 0
},
"blurhash": {
"value": null,
"type": "string",
"etag": "74e3cb9e631bda5f8073047c0279c09d",
"indexed": false,
"editPermission": 0
},
"files-live-photo": {
"value": null,
"type": "string",
"etag": "",
"indexed": false,
"editPermission": 1
}
},
"oc.integritycheck.checker": []
},
"dashboard": {
"enabled": "yes",
"installed_version": "7.11.0",
"types": ""
},
"dav": {
"buildCalendarReminderIndex": "yes",
"buildCalendarSearchIndex": "yes",
"builtSocialSearchIndex": "yes",
"calendarSubscriptionRefreshRate": "PT15M",
"chunks_migrated": "1",
"enabled": "yes",
"installed_version": "1.33.0",
"regeneratedBirthdayCalendarsForYearFix": "yes",
"types": "filesystem"
},
"dokuwiki": {
"enabled": "no",
"installed_version": "1.0.1",
"types": ""
},
"drawio": {
"enabled": "no",
"installed_version": "3.0.2",
"types": "filesystem"
},
"federatedfilesharing": {
"enabled": "yes",
"installed_version": "1.21.0",
"types": ""
},
"federation": {
"enabled": "yes",
"installed_version": "1.21.0",
"types": "authentication"
},
"files": {
"enabled": "yes",
"installed_version": "2.3.1",
"mimetype_version": "31.0.1.2",
"types": "filesystem"
},
"files_antivirus": {
"av_cmd_options": "",
"av_host": "",
"av_icap_mode": "reqmod",
"av_icap_request_service": "avscan",
"av_icap_response_header": "X-Infection-Found",
"av_infected_action": "only_log",
"av_max_file_size": "-1",
"av_mode": "executable",
"av_path": "\/usr\/bin\/clamscan",
"av_port": "0",
"av_scan_first_bytes": "-1",
"av_socket": "\/var\/run\/clamav\/clamd.ctl",
"av_stream_max_length": "26214400",
"enabled": "no",
"installed_version": "5.3.0",
"types": "filesystem,dav"
},
"files_downloadlimit": {
"enabled": "yes",
"installed_version": "4.0.0",
"types": ""
},
"files_pdfviewer": {
"enabled": "yes",
"installed_version": "4.0.0",
"types": ""
},
"files_reminders": {
"enabled": "yes",
"installed_version": "1.4.0",
"types": ""
},
"files_rightclick": {
"enabled": "no",
"installed_version": "1.6.0",
"types": ""
},
"files_sharing": {
"enabled": "yes",
"incoming_server2server_share_enabled": "no",
"installed_version": "1.23.1",
"lookupServerEnabled": "no",
"lookupServerUploadEnabled": "no",
"outgoing_server2server_share_enabled": "no",
"types": "filesystem",
"federatedTrustedShareAutoAccept": "no"
},
"files_trashbin": {
"enabled": "yes",
"installed_version": "1.21.0",
"types": "filesystem,dav"
},
"files_versions": {
"enabled": "yes",
"installed_version": "1.24.0",
"types": "filesystem,dav"
},
"firstrunwizard": {
"enabled": "yes",
"installed_version": "4.0.0",
"types": ""
},
"forms": {
"enabled": "yes",
"installed_version": "5.2.0",
"types": "prevent_group_restriction"
},
"hibp": {
"enabled": "no",
"installed_version": "0.1.0",
"types": ""
},
"logreader": {
"enabled": "yes",
"installed_version": "4.0.0",
"types": "logging"
},
"lookup_server_connector": {
"enabled": "yes",
"installed_version": "1.19.0",
"types": "authentication"
},
"memories": {
"installed_version": "7.6.2",
"enabled": "yes",
"types": "",
"last_index_job_start": "1759035939",
"last_index_job_duration": "53.51",
"last_index_job_status": "Indexing completed successfully",
"last_index_job_status_type": "success"
},
"news": {
"enabled": "yes",
"installed_version": "26.1.0",
"types": ""
},
"nextcloud_announcements": {
"enabled": "no",
"installed_version": "1.14.0",
"pub_date": "Thu, 24 Oct 2019 00:00:00 +0200",
"types": "logging"
},
"notes": {
"enabled": "yes",
"installed_version": "4.12.3",
"types": ""
},
"notifications": {
"enabled": "yes",
"installed_version": "4.0.0",
"types": "logging"
},
"oauth2": {
"enabled": "yes",
"installed_version": "1.19.1",
"types": "authentication"
},
"onlyoffice": {
"installed_version": "9.6.0",
"enabled": "no",
"types": "prevent_group_restriction"
},
"password_policy": {
"enabled": "yes",
"enforceNumericCharacters": "1",
"enforceSpecialCharacters": "1",
"enforceUpperLowerCase": "1",
"installed_version": "3.0.0",
"maximumLoginAttempts": "5",
"types": "authentication"
},
"photos": {
"enabled": "yes",
"installed_version": "4.0.0",
"lastPlaceMappedUser": "yoneyama",
"lastPlaceMappingDone": "true",
"types": "dav,authentication"
},
"polls": {
"enabled": "no",
"installed_version": "7.1.4",
"types": ""
},
"privacy": {
"enabled": "yes",
"installed_version": "3.0.0",
"readableLocation": "hk",
"types": ""
},
"profile": {
"installed_version": "1.0.0",
"types": "",
"enabled": "yes"
},
"provisioning_api": {
"enabled": "yes",
"installed_version": "1.21.0",
"types": "prevent_group_restriction"
},
"quota_warning": {
"enabled": "yes",
"info_email": "yes",
"installed_version": "1.22.0",
"types": "filesystem",
"warning_email": "yes"
},
"ransomware_protection": {
"enabled": "no",
"installed_version": "1.14.0",
"types": "logging"
},
"recommendations": {
"enabled": "yes",
"installed_version": "4.0.0",
"types": ""
},
"related_resources": {
"enabled": "yes",
"installed_version": "2.0.0",
"types": ""
},
"richdocuments": {
"disable_certificate_verification": "yes",
"enabled": "yes",
"installed_version": "8.7.5",
"types": "filesystem,prevent_group_restriction",
"wopi_url": "https:\/\/nextcloud.werkraum.hk\/apps\/richdocumentscode\/proxy.php?req="
},
"richdocumentscode": {
"enabled": "yes",
"installed_version": "25.4.504",
"types": ""
},
"serverinfo": {
"cached_count_filecache": 629026,
"cached_count_storages": 30,
"enabled": "yes",
"installed_version": "3.0.0",
"types": "",
"size_appdata_storage": -1,
"cached_count_appdata_files": 298646
},
"settings": {
"enabled": "yes",
"installed_version": "1.14.0",
"types": "",
"appstore-fetcher-lastFailure": "1759035808"
},
"sharebymail": {
"enabled": "yes",
"installed_version": "1.21.0",
"types": "filesystem"
},
"spreed": {
"enabled": "yes",
"has_reference_id": "yes",
"installed_version": "21.1.5",
"project_access_invalidated": "1",
"signaling_token_privkey_es256": "***REMOVED SENSITIVE VALUE***",
"signaling_token_pubkey_es256": "***REMOVED SENSITIVE VALUE***",
"types": "dav,prevent_group_restriction",
"default_group_notification": "1",
"matterbridge_binary": "\/var\/www\/nextcloud\/public_html\/apps\/talk_matterbridge\/bin\/matterbridge-1.26.0-linux-64bit"
},
"support": {
"SwitchUpdaterServerHasRun": "yes",
"enabled": "yes",
"installed_version": "3.0.0",
"types": "session"
},
"survey_client": {
"enabled": "yes",
"installed_version": "3.0.0",
"types": ""
},
"suspicious_login": {
"enabled": "no",
"installed_version": "6.0.0",
"types": "authentication"
},
"systemtags": {
"enabled": "yes",
"installed_version": "1.21.1",
"types": "logging"
},
"talk_matterbridge": {
"installed_version": "1.32.1026000",
"enabled": "yes",
"types": "prevent_group_restriction"
},
"text": {
"enabled": "yes",
"installed_version": "5.0.0",
"types": "dav"
},
"theming": {
"cachebuster": "8",
"enabled": "yes",
"installed_version": "2.6.1",
"name": "Hong Kong Cloud",
"slogan": "***REMOVED SENSITIVE VALUE***",
"types": "logging",
"url": "***REMOVED SENSITIVE VALUE***"
},
"twofactor_backupcodes": {
"enabled": "yes",
"installed_version": "1.20.0",
"types": ""
},
"twofactor_nextcloud_notification": {
"enabled": "yes",
"installed_version": "5.0.0",
"types": ""
},
"twofactor_totp": {
"enabled": "yes",
"installed_version": "13.0.0-dev.0",
"types": ""
},
"twofactor_webauthn": {
"enabled": "no",
"installed_version": "2.1.0",
"types": ""
},
"updatenotification": {
"calendar": "5.5.5",
"camerarawpreviews": "0.8.1",
"contacts": "7.3.2",
"core": "31.0.9.1",
"drawio": "2.1.3",
"enabled": "yes",
"forms": "5.2.0",
"installed_version": "1.21.0",
"news": "26.1.0",
"notes": "4.12.3",
"quota_warning": "1.21.0",
"ransomware_protection": "1.14.0",
"related_resources": "1.0.4",
"spreed": "21.1.5",
"types": "",
"update_check_errors": 0,
"assistant": "2.8.0",
"context_chat": "4.5.0",
"onlyoffice": "9.6.0",
"richdocuments": "8.7.5",
"whiteboard": "1.1.0",
"bookmarks": "15.2.0",
"memories": "7.6.2"
},
"user_status": {
"enabled": "yes",
"installed_version": "1.11.0",
"types": ""
},
"viewer": {
"enabled": "yes",
"installed_version": "4.0.0",
"types": ""
},
"weather_status": {
"enabled": "yes",
"installed_version": "1.11.0",
"types": ""
},
"webhook_listeners": {
"enabled": "yes",
"installed_version": "1.2.0",
"types": "filesystem"
},
"whiteboard": {
"installed_version": "1.1.0",
"enabled": "no",
"types": ""
},
"workflowengine": {
"enabled": "yes",
"installed_version": "2.13.0",
"types": "filesystem"
}
}
}
Apps
The output of occ app:list (if possible).
Tips for increasing the likelihood of a response
- Use the
preformatted textformatting option in the editor for all log entries and configuration output. - If screenshots are useful, feel free to include them.
- If possible, also include key error output in text form so it can be searched for.
- Try to edit log output only minimally (if at all) so that it can be ran through analyzers / formatters by those trying to help you.