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I’m having trouble setting up a Collabora Docker container in Nextcloud. I’m running Nextcloud, NGINXProxyManager, and Collabora on Proxmox (9.0.11)/Docker LXC Containers (Debian 12.12). All three applications are running as individual containers. The NGINXProxyManager is the reverse proxy for the applications’ external access. I believe I’ve configured Collabora correctly because when I access it through the reverse proxy, I get an “OK” message in the browser. However, when I try to open a Word document via Nextcloud, I get the following error message: “Failed to load document. Unauthorized WOPI host. Please try again later and contact your administrator if the problem persists.” I’ve read quite a bit but haven’t quite grasped what a WOPI host is. Does anyone have any idea what I need to configure and where?
BR Jan
The Basics
- Nextcloud Server version (e.g., 29.x.x):
32.0.1
- Operating system and version (e.g., Ubuntu 24.04):
Debain 12.12,Docker version 28.5.1
- Web server and version (e.g, Apache 2.4.25):
replace me
- Reverse proxy and version _(e.g. nginx 1.27.2)
replace me
- PHP version (e.g, 8.3):
replace me
- Is this the first time you’ve seen this error? (Yes / No):
no
- When did this problem seem to first start?
a long time before
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
Docker via Portainer
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
yes
Summary of the issue you are facing:
[…]
Steps to replicate it (hint: details matter!):
Log entries
Nextcloud
Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.
{"reqId":"3h0JB1zvpbQamhkiJokH","level":3,"time":"2025-11-07T12:46:52+00:00","remoteAddr":"192.168.2.190","user":"jan","app":"PHP","method":"PROPFIND","url":"/remote.php/dav/files/jan/","message":"Icewind\\SMB\\Native\\NativeState::lseek(): Implicitly marking parameter $path as nullable is deprecated, the explicit nullable type must be used instead at /app/www/public/3rdparty/icewind/smb/src/Native/NativeState.php#346","userAgent":"Mozilla/5.0 (Windows) mirall/4.0.1 (build 20251027) (Nextcloud, windows-10.0.26200 ClientArchitecture: x86_64 OsArchitecture: x86_64)","version":"32.0.1.2","clientReqId":"8a6ac51a-7ee0-46f5-99da-e0a3b8758020","data":{"app":"PHP"},"id":"690dea4dac916"}
Web Browser
If the problem is related to the Web interface, open your browser inspector Console and Network tabs while refreshing (reloading) and reproducing the problem. Provide any relevant output/errors here that appear.
PASTE
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
PASTE HERE
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!):
root@nextcloud:/#occ config:list system
{
"system": {
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"nextcloud.niederdraeing.uk",
"docker-proxmox",
"docker-proxmox.fritz.box",
"192.168.2.204"
],
"dbtype": "mysql",
"version": "32.0.1.2",
"overwrite.cli.url": "https:\/\/nextcloud.niederdraeing.uk",
"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": "DE",
"default_language": "de",
"defaultapp": "dashboard,files",
"enable_previews": true,
"preview_max_x": 4096,
"preview_max_y": 4096,
"preview_max_filesize_image": 50,
"preview_max_memory": 256,
"enabledPreviewProviders": [
"OC\\Preview\\PNG",
"OC\\Preview\\JPEG",
"OC\\Preview\\jpg",
"OC\\Preview\\JPG",
"OC\\Preview\\GIF",
"OC\\Preview\\HEIC",
"OC\\Preview\\BMP",
"OC\\Preview\\XBitmap",
"OC\\Preview\\MP3",
"OC\\Preview\\TXT",
"OC\\Preview\\MarkDown",
"OC\\Preview\\OpenDocument",
"OC\\Preview\\Krita",
"OC\\Preview\\Movie",
"OC\\Preview\\MKV",
"OC\\Preview\\MP4",
"OC\\Preview\\AVI",
"OC\\Preview\\PDF",
"OC\\Preview\\Imaginary",
"OC\\Preview\\Image"
],
"preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
"updater.release.channel": "stable",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_smtpmode": "smtp",
"mail_sendmailmode": "smtp",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "587",
"mail_smtpauth": 1,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"maintenance_window_start": 0,
"app_install_overwrite": [
"news",
"maps",
"bookmarks_fulltextsearch",
"wopi",
"backup",
"keeweb",
"memories",
"bookmarks",
"deck",
"fulltextsearch",
"fulltextsearch_elasticsearch",
"libresign",
"twofactor_admin"
],
"memcache.local": "\\OC\\Memcache\\APCu",
"filelocking.enabled": true,
"memcache.locking": "\\OC\\Memcache\\APCu",
"upgrade.disable-web": true,
"loglevel": 3,
"memories.exiftool": "\/config\/www\/nextcloud\/apps\/memories\/bin-ext\/exiftool-amd64-musl",
"memories.vod.path": "\/config\/www\/nextcloud\/apps\/memories\/bin-ext\/go-vod-amd64",
"memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
"memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
"memories.index.path.blacklist": "\\\/@(Recently-Snapshot|Recycle)\\\/",
"memories.db.triggers.fcu": true,
"memories.gis_type": 1
}
}
Apps
The output of occ app:list (if possible).
occ app:list
Enabled:
- activity: 5.0.0-dev.0
- admin_audit: 1.22.0
- app_api: 32.0.0
- bookmarks: 16.0.0
- bruteforcesettings: 5.0.0-dev.0
- calendar: 6.0.3
- circles: 32.0.0
- cloud_federation_api: 1.16.0
- comments: 1.22.0
- contacts: 8.0.6
- contactsinteraction: 1.13.1
- cookbook: 0.11.5
- dashboard: 7.12.0
- dav: 1.34.2
- deck: 1.16.0
- external: 7.0.0
- federatedfilesharing: 1.22.0
- federation: 1.22.0
- files: 2.4.0
- files_external: 1.24.0
- files_pdfviewer: 5.0.0-dev.0
- files_reminders: 1.5.0
- files_sharing: 1.24.0
- files_trashbin: 1.22.0
- fulltextsearch: 32.0.0
- fulltextsearch_elasticsearch: 32.0.0
- keeweb: 0.6.22
- libresign: 12.1.0
- logreader: 5.0.0-dev.0
- lookup_server_connector: 1.20.0
- mail: 5.5.12
- maps: 1.6.0
- memories: 7.7.0
- news: 27.1.0
- notes: 4.12.3
- notifications: 5.0.0-dev.0
- oauth2: 1.20.0
- password_policy: 4.0.0-dev.0
- photos: 5.0.0-dev.1
- previewgenerator: 5.10.0
- privacy: 4.0.0-dev.0
- profile: 1.1.0
- provisioning_api: 1.22.0
- recognize: 10.0.5
- recommendations: 5.0.0-dev.0
- related_resources: 3.0.0-dev.0
- richdocuments: 9.0.1
- serverinfo: 4.0.0-dev.0
- settings: 1.15.1
- sharebymail: 1.22.0
- spreed: 22.0.2
- support: 4.0.0-dev.0
- survey_client: 4.0.0-dev.0
- suspicious_login: 10.0.0-dev.0
- systemtags: 1.22.0
- text: 6.0.1
- theming: 2.7.0
- twofactor_admin: 4.8.0
- twofactor_backupcodes: 1.21.0
- twofactor_nextcloud_notification: 6.0.0-dev.0
- twofactor_totp: 14.0.0
- updatenotification: 1.22.0
- user_status: 1.12.0
- viewer: 5.0.0-dev.0
- weather_status: 1.12.0
- webhook_listeners: 1.3.0
- workflowengine: 2.14.0
Disabled:
- backup: 1.4.0 (installed 1.4.0)
- calendar_news: 1.1.16 (installed 1.1.16)
- encryption: 2.20.0 (installed 2.17.0)
- files_downloadlimit: 5.0.0-dev.0 (installed 2.0.0)
- files_versions: 1.25.0 (installed 1.24.0)
- firstrunwizard: 5.0.0-dev.0 (installed 2.18.0)
- nextcloud_announcements: 4.0.0-dev.0 (installed 1.18.0)
- user_ldap: 1.23.0 (installed 1.20.0)
- wopi: 3.5.11 (installed 3.5.11)
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.
I would recommend you look at the logs (“