LDAP not working in Netbox 3.2.0

[lalegre145]

Current Behavior

I am working on a migration and first I want to have Netbox 3.2.0 working, and then perform an update to a newer version. As part of this migration I performed the database dump and restore (that worked fine) and I also moved from LDAP to LDAPs.

I do have connectivity from docker host if I perform a curl to port 636, but I am receiving errors on the LDAP server.

Expected Behavior

To be able to login.

Docker Compose Version

Docker Compose version v5.1.0

Docker Version

Client: Docker Engine - Community
 Version:           29.2.1
 API version:       1.53
 Go version:        go1.25.6
 Git commit:        a5c7197
 Built:             Mon Feb  2 17:17:26 2026
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          29.2.1
  API version:      1.53 (minimum version 1.44)
  Go version:       go1.25.6
  Git commit:       6bc6209
  Built:            Mon Feb  2 17:17:26 2026
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          v2.2.1
  GitCommit:        dea7da592f5d1d2b7755e3a161be07f43fad8f75
 runc:
  Version:          1.3.4
  GitCommit:        v1.3.4-0-gd6d73eb8
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

The git Revision

0b70f72

The git Status

Not currently on any branch.

Startup Command

docker compose up

NetBox Logs

WARNING Caught LDAPError looking up user: SERVER_DOWN({'result': -1, 'desc': "Can't contact LDAP server", 'errno': 2, 'ctrls': [], 'info': 'No such file or directory'})

Content of docker-compose.override.yml

services:
  netbox:
    volumes:
      - /opt/netbox/configuration/nginx-unit.json:/etc/unit/nginx-unit.json:ro
    environment:
      REMOTE_AUTH_ENABLED: "True"
      REMOTE_AUTH_BACKEND: "netbox.authentication.LDAPBackend"
      AUTH_LDAP_CACHE_TIMEOUT: "1800"
      AUTH_LDAP_SERVER_URI: "ldaps://xxx.com:636"
      AUTH_LDAP_BIND_AS_AUTHENTICATING_USER: "False"
      LDAP_CA_CERT_DIR: "/etc/ssl/certs"
      LDAP_CA_CERT_FILE: "/etc/ssl/RootCA.pem"
      LDAP_IGNORE_CERT_ERRORS: "True"
      AUTH_LDAP_BIND_DN: "CN=xxxxxxxx,OU=xxxxxx,OU=xxxx,OU=xxxxx,DC=xxxx,DC=xxxxDC=com"
      AUTH_LDAP_BIND_PASSWORD: "xxxxxxxxxxxxxxxx"
      AUTH_LDAP_USER_SEARCH_BASEDN: "dc=corp,dc=kazootek,dc=com"
      AUTH_LDAP_GROUP_SEARCH_BASEDN: "dc=corp,dc=kazootek,dc=com"
      AUTH_LDAP_GROUP_TYPE: "NestedGroupOfNamesType"
      LOGLEVEL: "DEBUG"
    security_opt:
     - seccomp:unconfined
    ports:
     - "8081:8080"
  netbox-worker:
    security_opt:
     - seccomp:unconfined