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Sorry to hear you’re facing problems. 
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Getting help
In order to help you as efficiently (and quickly!) as possible, please fill in as much of the below requested information as you can.
Before clicking submit: Please check if your query is already addressed via the following resources:
- most of office issues are handled in Collabora integration guide
- 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):
- 32.0.1
- Operating system and version (e.g., Ubuntu 24.04):
- Debian GNU/Linux 12 (bookworm)
- Web server and version (e.g, Apache 2.4.25):
Apache2
- Reverse proxy and version _(e.g. nginx 1.27.2)
(dunno, only running in local lan)
- PHP version (e.g, 8.3):
- PHP 8.2.29
- Is this the first time you’ve seen this error? (Yes / No):
yes, since IP change
- When did this problem seem to first start?
after IP change
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
through Admin App interface
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
No
Summary of the issue you are facing:
Hello,
I am running the above on a proxmox VM. I initially hosted my server on 10.0.0.14, but I changed it to 10.0.0.4. All other apps are running fine, but for some reason Nextcloud office keeps pointing to 10.0.0.14…. 
(see the nextcloud error log, config.php seems fine to me).
Steps to replicate it (hint: details matter!):
- Just try to open a new nextcloud document in the files sections and then the error occurs.
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":"kB6OHgs1zfIs5awQuT4j","level":3,"time":"2025-11-11T17:00:14+00:00","remoteAddr":"","user":"--","app":"richdocuments","method":"","url":"--","message":"Failed to fetch discovery: cURL error 7: Failed to connect to 10.0.0.14 port 443 after 3071 ms: Couldn't connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://10.0.0.14/apps/richdocumentscode/proxy.php?req=/hosting/discovery","userAgent":"--","version":"31.0.10.2","exception":{"Exception":"GuzzleHttp\\Exception\\ConnectException","Message":"cURL error 7: Failed to connect to 10.0.0.14 port 443 after 3071 ms: Couldn't connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://10.0.0.14/apps/richdocumentscode/proxy.php?req=/hosting/discovery","Code":0,"Trace":[{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","line":205,"function":"createRejection","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","line":157,"function":"finishError","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlHandler.php","line":47,"function":"finish","class":"GuzzleHttp\\Handler\\CurlFactory","type":"::"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":142,"function":"__invoke","class":"GuzzleHttp\\Handler\\CurlHandler","type":"->"},{"file":"/var/www/nextcloud/lib/private/Http/Client/DnsPinMiddleware.php","line":109,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php","line":35,"function":"OC\\Http\\Client\\{closure}","class":"OC\\Http\\Client\\DnsPinMiddleware","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":31,"function":"__invoke","class":"GuzzleHttp\\PrepareBodyMiddleware","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/RedirectMiddleware.php","line":71,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":66,"function":"__invoke","class":"GuzzleHttp\\RedirectMiddleware","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/HandlerStack.php","line":75,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php","line":333,"function":"__invoke","class":"GuzzleHttp\\HandlerStack","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php","line":169,"function":"transfer","class":"GuzzleHttp\\Client","type":"->"},{"file":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php","line":189,"function":"requestAsync","class":"GuzzleHttp\\Client","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/Http/Client/Client.php","line":206,"function":"request","class":"GuzzleHttp\\Client","type":"->"},{"file":"/var/www/nextcloud/apps/richdocuments/lib/Service/DiscoveryService.php","line":59,"function":"get","class":"OC\\Http\\Client\\Client","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/apps/richdocuments/lib/Service/CachedRequestService.php","line":74,"function":"sendRequest","class":"OCA\\Richdocuments\\Service\\DiscoveryService","type":"->"},{"file":"/var/www/nextcloud/apps/richdocuments/lib/Backgroundjobs/ObtainCapabilities.php","line":41,"function":"fetch","class":"OCA\\Richdocuments\\Service\\CachedRequestService","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/Job.php","line":61,"function":"run","class":"OCA\\Richdocuments\\Backgroundjobs\\ObtainCapabilities","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":97,"function":"start","class":"OCP\\BackgroundJob\\Job","type":"->"},{"file":"/var/www/nextcloud/lib/public/BackgroundJob/TimedJob.php","line":84,"function":"start","class":"OCP\\BackgroundJob\\TimedJob","type":"->"},{"file":"/var/www/nextcloud/cron.php","line":170,"function":"execute","class":"OCP\\BackgroundJob\\TimedJob","type":"->"}],"File":"/var/www/nextcloud/3rdparty/guzzlehttp/guzzle/src/Handler/CurlFactory.php","Line":275,"message":"Failed to fetch discovery: cURL error 7: Failed to connect to 10.0.0.14 port 443 after 3071 ms: Couldn't connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://10.0.0.14/apps/richdocumentscode/proxy.php?req=/hosting/discovery","exception":[],"CustomMessage":"Failed to fetch discovery: cURL error 7: Failed to connect to 10.0.0.14 port 443 after 3071 ms: Couldn't connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://10.0.0.14/apps/richdocumentscode/proxy.php?req=/hosting/discovery"},"id":"69136bdf7bc93"}
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.
no errors, just keeps loading and'hangs'
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
no specific errors that I can tell
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",
"10.0.0.4"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "31.0.10.2",
"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,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"default_phone_region": "BE",
"memcache.local": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"timeout": 0
},
"filelocking.enabled": true,
"memcache.locking": "\\OC\\Memcache\\Redis",
"log_type": "file",
"logfile": "\/var\/www\/nextcloud-data\/nextcloud.log",
"loglevel": 0,
"maintenance": false,
"theme": "",
"allow_local_remote_servers": true,
"maintenance_window_start": 1
}
}
Apps
The output of occ app:list (if possible).
Enabled:
- activity: 4.0.0
- app_api: 5.0.2
- bruteforcesettings: 4.0.0
- calendar: 5.5.8
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- comments: 1.21.0
- contacts: 7.3.6
- contactsinteraction: 1.12.1
- dashboard: 7.11.0
- dav: 1.33.0
- federatedfilesharing: 1.21.0
- federation: 1.21.0
- files: 2.3.1
- files_downloadlimit: 4.0.0
- files_external: 1.23.0
- files_pdfviewer: 4.0.0
- files_reminders: 1.4.0
- files_sharing: 1.23.1
- files_trashbin: 1.21.0
- files_versions: 1.24.0
- firstrunwizard: 4.0.0
- gpxpod: 7.1.0
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- mail: 5.5.13
- nextcloud_announcements: 3.0.0
- notifications: 4.0.0
- oauth2: 1.19.1
- password_policy: 3.0.0
- photos: 4.0.0
- privacy: 3.0.0
- profile: 1.0.0
- provisioning_api: 1.21.0
- recommendations: 4.0.0
- related_resources: 2.0.0
- richdocuments: 8.7.6
- richdocumentscode: 25.4.504
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- support: 3.0.0
- survey_client: 3.0.0
- systemtags: 1.21.1
- tasks: 0.17.1
- text: 5.0.2
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- updatenotification: 1.21.0
- user_status: 1.11.0
- viewer: 4.0.0
- weather_status: 1.11.0
- webhook_listeners: 1.2.0
- workflowengine: 2.13.0
Disabled: - admin_audit: 1.21.0
- encryption: 2.19.0
- spreed: 21.1.5 (installed 21.1.5)
- suspicious_login: 9.0.1
- twofactor_nextcloud_notification: 5.0.0
- twofactor_totp: 13.0.0-dev.0
- user_ldap: 1.22.0
- user_migration: 8.0.0 (installed 8.0.0)