A successfull logon is followed by an automatic logout. The following is in the log:
83.97.87.43 - - [03/Sep/2025:23:08:01 +0200] "POST /login HTTP/1.1" 303 2043 "https://office.kingma.ch/login?redirect_url=%2Fapps%2Factivity%2Fall" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:02 +0200] "GET /login?redirect_url=/apps/activity/all&direct=1&user=johannes HTTP/1.1" 200 10081 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:07 +0200] "GET /login?redirect_url=/apps/activity/all&direct=1&user=johannes HTTP/1.1" 200 10145 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:10 +0200] "POST /login HTTP/1.1" 303 1324 "https://office.kingma.ch/login?redirect_url=/apps/activity/all&direct=1&user=johannes" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:13 +0200] "GET /apps/activity/all HTTP/1.1" 200 13509 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
103.69.224.13 - johannes [03/Sep/2025:23:08:14 +0200] "PROPFIND /remote.php/dav/files/johannes/ HTTP/1.1" 207 995 "-" "Mozilla/5.0 (Linux) mirall/3.17.1daily (Nextcloud, org.kde.Platform-6.15.10-200.fc42.x86_64 ClientArchitecture: x86_64 OsArchitecture: x86_64)"
83.97.87.43 - - [03/Sep/2025:23:08:14 +0200] "GET /ocs/v2.php/apps/activity/api/v2/activity/all?format=json&previews=true&since=0 HTTP/1.1" 401 1221 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:14 +0200] "GET /ocs/v2.php/apps/user_status/api/v1/user_status HTTP/1.1" 401 1221 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:15 +0200] "PUT /ocs/v2.php/apps/user_status/api/v1/heartbeat?format=json HTTP/1.1" 401 1221 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:14 +0200] "GET /apps/theming/icon/activity?v=8d971e53 HTTP/1.1" 200 16018 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:15 +0200] "GET /ocs/v2.php/apps/notifications/api/v2/notifications HTTP/1.1" 401 1221 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:15 +0200] "GET /ocs/v2.php/apps/activity/api/v2/activity/all?format=json&previews=true&since=0 HTTP/1.1" 401 1023 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:15 +0200] "GET /apps/files HTTP/1.1" 401 1157 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:15 +0200] "GET /login?redirect_url=%2Fapps%2Factivity%2Fall HTTP/1.1" 200 10032 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:15 +0200] "GET /ocs/v2.php/apps/activity/api/v2/activity/all?format=json&previews=true&since=0 HTTP/1.1" 401 1221 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
83.97.87.43 - - [03/Sep/2025:23:08:14 +0200] "GET /apps/theming/favicon/activity?v=8d971e53 HTTP/1.1" 200 91532 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0"
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. 
- Nextcloud Server version:
Nextcloud 31.0.8
- Operating system and version:
#1 SMP PREEMPT Debian 1:6.12.34-1+rpt1~bookworm (2025-06-26)
- Web server and version:
Server version: Apache/2.4.65 (Debian)
- Reverse proxy and version:
nginx version: openresty/1.27.1.2
- PHP version:
PHP 8.3.24 (cli) (built: Aug 13 2025 04:19:56) (NTS)
- Is this the first time you’ve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
prob direct after installation
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
OMV Container
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
nope
Configuration
Nextcloud
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"version": "31.0.8.1",
"loglevel": 2,
"log_rotate_size": 1048576,
"maintenance": false,
"maintenance_window_start": 3,
"default_locale": "DE_CH",
"default_phone_region": "CH",
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"memcache.local": "\\OC\\Memcache\\APCu",
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"password": "***REMOVED SENSITIVE VALUE***",
"port": 6379
},
"upgrade.disable-web": true,
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"mysql.utf8mb4": true,
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"dbtableprefix": "oc_",
"htaccess.RewriteBase": "\/",
"trusted_domains": [
"srv-nas-pi.kingma:8080",
"office.kingma.ch",
"office.king.ma"
],
"overwrite.cli.url": "https:\/\/office.kingma.ch",
"overwriteprotocol": "https",
"apps_paths": [
{
"path": "\/var\/www\/html\/apps",
"url": "\/apps",
"writable": false
},
{
"path": "\/var\/www\/html\/custom_apps",
"url": "\/custom_apps",
"writable": true
}
],
"mail_smtpmode": "smtp",
"mail_sendmailmode": "smtp",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "465",
"mail_smpttimeout": 30,
"installed": true,
"mail_smtpauth": true,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"mail_smtpsecure": "ssl",
"app_install_overwrite": []
}
}
Apps
Enabled:
- activity: 4.0.0
- admin_audit: 1.21.0
- app_api: 5.0.2
- bruteforcesettings: 4.0.0
- calendar: 5.5.1
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- comments: 1.21.0
- contacts: 7.2.6
- contactsinteraction: 1.12.0
- cookbook: 0.11.3
- dashboard: 7.11.0
- dav: 1.33.0
- documentserver_community: 0.2.0
- federatedfilesharing: 1.21.0
- federation: 1.21.0
- files: 2.3.1
- files_downloadlimit: 4.0.0
- 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
- fulltextsearch: 31.0.0
- groupfolders: 19.1.3
- logcleaner: 1.1.8
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- nextcloud_announcements: 3.0.0
- notes: 4.12.3
- 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: 8.7.4
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- support: 3.0.0
- survey_client: 3.0.0
- suspicious_login: 9.0.1
- systemtags: 1.21.1
- text: 5.0.0
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- twofactor_nextcloud_notification: 5.0.0
- twofactor_totp: 13.0.0-dev.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:- encryption: 2.19.0 (installed 2.19.0)
- files_external: 1.23.0 (installed 1.23.0)
- user_ldap: 1.22.0 (installed 1.22.0)
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.
PASTE HERE