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 
Some useful links to gather information about your Nextcloud Talk installation:
Information about Signaling server: /index.php/index.php/settings/admin/talk#signaling_server
Information about TURN server: /index.php/settings/admin/talk#turn_server
Information about STUN server: /index.php/settings/admin/talk#stun_server
Nextcloud version (eg, 24.0.1): 32.0.0
Talk Server version (eg, 14.0.2): 22.0.0
Custom Signaling server configured: yes Docker 2.0.4
Custom TURN server configured: yes
Custom STUN server configured: yes
In case the web version of Nextcloud Talk is involved:
Operating system (eg, Windows/Ubuntu/…): Debian 12
Browser name and version (eg, Chrome v101): Firefox
The issue you are facing: error on starting recording
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
-
configure talk recording with nextcloud/aio-talk-recording:latest
-
start talk room
-
start recording => failded
The output of your Nextcloud log in Admin > Logging or errors in nextcloud.log in /var/www/:
HERE{"reqId":"XmOsHHXZ4tCG2PhYjfz0","level":3,"time":"2025-10-14T17:27:51+02:00","remoteAddr":"172.22.0.2","user":"--","app":"PHP","method":"GET","url":"/ocs/v2.php/cloud/capabilities","message":"Unknown: Use of mbstring.http_input is deprecated at Unknown#0","userAgent":"nextcloud-spreed-signaling/2.0.4~docker","version":"32.0.0.13","data":{"app":"PHP"}}
{"reqId":"Mun1XzicMY1L0R4SnnvK","level":3,"time":"2025-10-14T17:27:51+02:00","remoteAddr":"172.22.0.2","user":"--","app":"PHP","method":"POST","url":"/ocs/v2.php/apps/spreed/api/v3/signaling/backend","message":"Unknown: Use of mbstring.http_input is deprecated at Unknown#0","userAgent":"nextcloud-spreed-signaling/2.0.4~docker","version":"32.0.0.13","data":{"app":"PHP"}}
{"reqId":"7pstMN24SFUM3tB17zHp","level":3,"time":"2025-10-14T17:27:54+02:00","remoteAddr":"ip-client","user":"admin","app":"spreed","method":"POST","url":"/ocs/v2.php/apps/spreed/api/v1/recording/u5pf4edi","message":"Failed to send message to recording server","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:143.0) Gecko/20100101 Firefox/143.0","version":"32.0.0.13","exception":{"Exception":"GuzzleHttp\\Exception\\ClientException","Message":"Client error: `POST http://127.0.0.1:1235/api/v1/room/u5pf4edi` resulted in a `403 FORBIDDEN` response:\n<!doctype html>\n<html lang=en>\n<title>403 Forbidden</title>\n<h1>Forbidden</h1>\n<p>You don't have the permission to a (truncated...)\n","Code":403,"Trace":[{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/guzzle/src/Middleware.php","line":72,"function":"create","class":"GuzzleHttp\\Exception\\RequestException","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/Promise.php","line":209,"function":"GuzzleHttp\\{closure}","class":"GuzzleHttp\\Middleware","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/Promise.php","line":158,"function":"callHandler","class":"GuzzleHttp\\Promise\\Promise","type":"::","args":[1,"*** sensitive parameters replaced ***","*** sensitive parameters replaced ***"]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/TaskQueue.php","line":52,"function":"GuzzleHttp\\Promise\\{closure}","class":"GuzzleHttp\\Promise\\Promise","type":"::","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/Promise.php","line":251,"function":"run","class":"GuzzleHttp\\Promise\\TaskQueue","type":"->","args":[true]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/Promise.php","line":227,"function":"invokeWaitFn","class":"GuzzleHttp\\Promise\\Promise","type":"->","args":[]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/Promise.php","line":272,"function":"waitIfPending","class":"GuzzleHttp\\Promise\\Promise","type":"->","args":[]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/Promise.php","line":229,"function":"invokeWaitList","class":"GuzzleHttp\\Promise\\Promise","type":"->","args":[]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/promises/src/Promise.php","line":69,"function":"waitIfPending","class":"GuzzleHttp\\Promise\\Promise","type":"->","args":[]},{"file":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/guzzle/src/Client.php","line":189,"function":"wait","class":"GuzzleHttp\\Promise\\Promise","type":"->","args":[]},{"file":"/var/www/url-nextcloud/www/lib/private/Http/Client/Client.php","line":277,"function":"request","class":"GuzzleHttp\\Client","type":"->","args":["post","*** sensitive parameters replaced ***",{"verify":"/var/www/url-nextcloud/www/resources/config/ca-bundle.crt","timeout":30,"headers":{"Content-Type":"application/json","Talk-Recording-Random":"pTFqlXqroB6mkFHhYrfKIEH4dc+axD/jlYDI3bBkF97bviYo70XxCUVGFZ9cLCPt","Talk-Recording-Checksum":"d8779d2e2697226db4276b6fd42cc6b9f31dcef8c3b6256caa57075136da2478","Talk-Recording-Backend":"https://url-nextcloud/","User-Agent":"Nextcloud Server Crawler","0":"And 1 more entries, set log level to debug to see all entries"},"body":"{\"type\":\"start\",\"start\":{\"status\":1,\"owner\":\"admin\",\"actor\":{\"type\":\"users\",\"id\":\"admin\"}}}","nextcloud":{"allow_local_address":true},"0":"And 1 more entries, set log level to debug to see all entries"}]},{"file":"/var/www/url-nextcloud/www/apps/spreed/lib/Recording/BackendNotifier.php","line":52,"function":"post","class":"OC\\Http\\Client\\Client","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/url-nextcloud/www/apps/spreed/lib/Recording/BackendNotifier.php","line":116,"function":"doRequest","class":"OCA\\Talk\\Recording\\BackendNotifier","type":"->","args":["*** sensitive parameters replaced ***","*** sensitive parameters replaced ***"]},{"file":"/var/www/url-nextcloud/www/apps/spreed/lib/Recording/BackendNotifier.php","line":121,"function":"backendRequest","class":"OCA\\Talk\\Recording\\BackendNotifier","type":"->","args":[{"__class__":"OCA\\Talk\\Room"},{"type":"start","start":{"status":1,"owner":"admin","actor":{"type":"users","id":"admin"}}}]},{"file":"/var/www/url-nextcloud/www/apps/spreed/lib/Service/RecordingService.php","line":106,"function":"start","class":"OCA\\Talk\\Recording\\BackendNotifier","type":"->","args":[{"__class__":"OCA\\Talk\\Room"},1,"admin",{"__class__":"OCA\\Talk\\Participant"}]},{"file":"/var/www/url-nextcloud/www/apps/spreed/lib/Controller/RecordingController.php","line":346,"function":"start","class":"OCA\\Talk\\Service\\RecordingService","type":"->","args":[{"__class__":"OCA\\Talk\\Room"},1,"admin",{"__class__":"OCA\\Talk\\Participant"}]},{"file":"/var/www/url-nextcloud/www/lib/private/AppFramework/Http/Dispatcher.php","line":204,"function":"start","class":"OCA\\Talk\\Controller\\RecordingController","type":"->","args":[1]},{"file":"/var/www/url-nextcloud/www/lib/private/AppFramework/Http/Dispatcher.php","line":118,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Talk\\Controller\\RecordingController"},"start"]},{"file":"/var/www/url-nextcloud/www/lib/private/AppFramework/App.php","line":153,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OCA\\Talk\\Controller\\RecordingController"},"start"]},{"file":"/var/www/url-nextcloud/www/lib/private/Route/Router.php","line":321,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OCA\\Talk\\Controller\\RecordingController","start",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"ocs.spreed.recording.start","apiVersion":"v1","token":"u5pf4edi"}]},{"file":"/var/www/url-nextcloud/www/ocs/v1.php","line":61,"function":"match","class":"OC\\Route\\Router","type":"->","args":["/ocsapp/apps/spreed/api/v1/recording/u5pf4edi"]},{"file":"/var/www/url-nextcloud/www/ocs/v2.php","line":8,"args":["/var/www/url-nextcloud/www/ocs/v1.php"],"function":"require_once"}],"File":"/var/www/url-nextcloud/www/3rdparty/guzzlehttp/guzzle/src/Exception/RequestException.php","Line":111,"message":"Failed to send message to recording server","exception":{},"CustomMessage":"Failed to send message to recording server"}}
The output of your Apache/nginx/system log in /var/log/____:No error
Your browser log if relevant (javascript console log, network log, etc.):
No error chown
Recording error
WARNING:nextcloud.talk.recording.Server:Checksum verification failed: d8779d2e2697226db4276b6fd42cc6b9f31dcef8c3b6256caa57075136da2478 92717dc5f0473ba44f5a1a57b5e76db297c5bb2c324911b18f390fdf5e5a2e3d
NB : It’s Works with Nextcloud 31
Thanks