[Bug]: ldap app does not succed to conect to an openldap server

⚠️ This issue respects the following points: ⚠️

[X] This is a bug, not a question or a configuration/webserver/proxy issue.
[X] This issue is not already reported on Github (I've searched it).
[X] Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
[X] I agree to follow Nextcloud's Code of Conduct.

Bug description

I just install a fres nextcloud with lates version 23.0.3 (then update to 23.0.4) on a Ubuntu 20.04 VM. I have a openldap working on another Ubuntu VM and works fine with a Owncloud connected on it.

I have activate the “Integration LDAP / AD” app on nexcloud. But when going to the parameter of this app, everythings seems in “grey” (like tabs user, login attribut, groups, advance, expert) I try to fill the host, port, DN user, password, base but when selecting the button “test DN base” nothing append… No log in “nextcloud/data/nextcloud.log”

the command : ldapsearch -x -b “dc=mydomain,dc=net” -H ldap://ldap.mydomain.net:389 -D “cn=admin,dc=mydomain,dc=net” -W works fine

A owncloud instance (not on the same Ubuntu VM) works fine with the same ldap

I had the feeling when arriving in the conf page that it initialy display a larger page with more menu but only half seconds...

Steps to reproduce

Fresh Ubuntu 20.04 install
nextcloud install
ldap app actctivation

Expected behavior

using detect port works detect DN or test DN works Ldap connexion works

Installation method

Manual installation

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.0

Web server

Nginx

Database engine version

MariaDB

Is this bug present after an update or on a fresh install?

Fresh Nextcloud Server install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

[X] Default user-backend (database)
[X] LDAP/ Active Directory
[ ] SSO - SAML
[ ] Other

Configuration report

No response

List of activated Apps

Enabled:
  - accessibility: 1.9.0
  - activity: 2.15.0
  - bruteforcesettings: 2.4.0
  - calendar: 3.2.2
  - circles: 23.1.1
  - cloud_federation_api: 1.6.0
  - comments: 1.13.0
  - contacts: 4.1.0
  - contactsinteraction: 1.4.0
  - dashboard: 7.3.0
  - dav: 1.21.0
  - documentserver_community: 0.1.12
  - external: 3.10.2
  - federatedfilesharing: 1.13.0
  - federation: 1.13.0
  - files: 1.18.0
  - files_pdfviewer: 2.4.0
  - files_rightclick: 1.2.0
  - files_sharing: 1.15.0
  - files_trashbin: 1.13.0
  - files_versions: 1.16.0
  - files_videoplayer: 1.12.0
  - firstrunwizard: 2.12.0
  - logreader: 2.8.0
  - lookup_server_connector: 1.11.0
  - mail: 1.11.7
  - nextcloud_announcements: 1.12.0
  - notifications: 2.11.1
  - oauth2: 1.11.0
  - onlyoffice: 7.3.2
  - password_policy: 1.13.0
  - photos: 1.5.0
  - privacy: 1.7.0
  - provisioning_api: 1.13.0
  - recommendations: 1.2.0
  - richdocuments: 5.0.3
  - serverinfo: 1.13.0
  - settings: 1.5.0
  - sharebymail: 1.13.0
  - sociallogin: 4.14.0
  - spreed: 13.0.5
  - support: 1.6.0
  - survey_client: 1.11.0
  - systemtags: 1.13.0
  - text: 3.4.1
  - theming: 1.14.0
  - twofactor_backupcodes: 1.12.0
  - unsplash: 1.2.4
  - updatenotification: 1.13.0
  - user_ldap: 1.13.1
  - user_status: 1.3.1
  - viewer: 1.7.0
  - weather_status: 1.3.0
  - workflowengine: 2.5.0
Disabled:
  - admin_audit
  - encryption
  - files_external

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

nothing apear with tail -f data/nextcloud.log
when trying to configure ldap

Additional info

No response

nextcloud / server