Mobile app cant connect

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Nextcloud version (eg, 22.1.1): 22.1.1
Operating system and version (eg, Ubuntu 20.04): zorin 16 pro
Apache or nginx version (eg, Apache 2.4.25): nginx - portainer
PHP version (eg, 7.4): replace me

The issue you are facing: I installed nextcloud stack using portainer, nginx, MariaDB and duckdns. Everything seems to work from a desktop, but on the mobile app I can not connect. The error I get is “strict mode no http connection allowed” and it will not log in. I can log in with that same user from desktop. Thanks in advance

Is this the first time you’ve seen this error? (Y/N): yes

Steps to replicate it:

  1. reinstalled

The output of your Nextcloud log in Admin > Logging:

[core] Warning: Login failed: 'xxx' (Remote IP: 'xxx.xxx.xx.14')

PROPFIND /remote.php/dav/addressbooks/users/xxx/contacts/
from xxx.xxx.xx.14 at 2021-09-27T18:29:11+00:00

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

PASTE HERE

The output of your Apache/nginx/system log in /var/log/____:

{
  "id": 1,
  "created_on": "2021-09-21 02:41:31",
  "modified_on": "2021-09-21 03:46:51",
  "owner_user_id": 1,
  "domain_names": [
    "xxx.xxx.xxx
  ],
  "forward_host": "netcloud",
  "forward_port": 80,
  "access_list_id": 0,
  "certificate_id": 2,
  "ssl_forced": true,
  "caching_enabled": false,
  "block_exploits": false,
  "advanced_config": "",
  "meta": {
    "letsencrypt_agree": false,
    "dns_challenge": false
  },
  "allow_websocket_upgrade": false,
  "http2_support": true,
  "forward_scheme": "http",
  "enabled": 1,
  "locations": [],
  "hsts_enabled": true,
  "hsts_subdomains": true
}

Which mobile app, the Nextcloud app? On Android/iOS/other?

or carddav?

You login with an app password? Or normal user/pw login (no second factor authentication)?

Hello, I am using the nextcloud mobile app.

Hello, just normal user pw that was created when the user was created on the website

Docker?

https://github.com/nextcloud/docker/issues/1270

Yes, official NC docker image. I resolved the issue by switching to the Linuxserver version.