Authentification against Active Directory from symfony 5

I am attempting to authenticate users at my company for Symfony5 apps using Active Directory. My current configuration is as follows (this was also successfully tested with Softerra Ldap test server so I can confirm the config is correct).

security:
providers:
    my_ldap:
        ldap:
            service: Symfony\Component\Ldap\Ldap
            base_dn: 'OU=xxxxx,DC=dom1,DC=dom2,DC=com'
            search_dn: 'CN=adminUser,OU=xxx,OU=xxxx,DC=dom1,DC=dom2,DC=com'
            search_password: 'somePassword'
            uid_key: sAMAccountName
            filter: (sAMAccountName={username})
            default_roles: ROLE_USER
            #extra_fields: ['title']

firewalls:
    dev:
        pattern: ^/(_(profiler|wdt)|css|images|js)/
        security: false
    main:
        pattern: ^/
        security: true
        anonymous: true
        provider: my_ldap
        form_login_ldap:
            login_path: login
            check_path: login
            service: Symfony\Component\Ldap\Ldap
            dn_string: 'sAMAccountName={username},DC=dom1,DC=dom2,DC=com'
            default_target_path: AdminDashboard
access_control:
    - { path: ^/, roles: IS_AUTHENTICATED_ANONYMOUSLY }
    #- { path: ^/, roles: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/AdminDashboard, roles: ROLE_USER } 

LDAP configuration

Symfony\Component\Ldap\Ldap:
    arguments: ['@Symfony\Component\Ldap\Adapter\ExtLdap\Adapter']
Symfony\Component\Ldap\Adapter\ExtLdap\Adapter:
    arguments:
        -   host: xxxxxx.dom1.dom2.com
            port: xxx
            #encryption: tls
            options:
                protocol_version: 3
                referrals: false

I tried to bind this AD with native php and it's working fine

$ldap_host = "host";

// active directory DN (base location of ldap search)
$ldap_dn = 'OU=xxx,DC=dom1,DC=dom2,DC=com';

// domain, for purposes of constructing $user
$ldap_usr_dom = $user."@dom1.dom2.com";
$port="636";
//display error
error_reporting(0);
// connect to active directory
$ldap = ldap_connect($ldap_host);



// configure ldap params
ldap_set_option($ldap,LDAP_OPT_PROTOCOL_VERSION,3);
ldap_set_option($ldap,LDAP_OPT_REFERRALS,0);

//serach
//$attr = array("memberof");
//$filter="(sAMAccountName=".$user.")";
$bind = @ldap_bind($ldap, $ldap_usr_dom, $password);
//var_dump($bind);die;
// existing usename


if ($bind) {
    // valid
    // check presence in groups
    $filter="(&(objectCategory=person)(objectClass=user)(sAMAccountName=".$user."))";
    //$filter="(&(objectCategory=person)(objectClass=user)(sAMAccountName=".$user."))";
    $justthese = array("ou", "sn", "givenname", "mail","badpwdcount","lastlogon","employeeid","sAMAccountName","cn");
    $result = ldap_search($ldap, $ldap_dn,$filter,$justthese) or exit("Unable to search LDAP server");
    $info = ldap_get_entries($ldap, $result);

    //var_dump($info);die;
    $passwordRetryCount=$info[0]['badpwdcount'][0];
    var_dump($info);die;

    //if($info[0]['badpwdcount'][0]==0){
    //  var_dump($info[0]['badpwdcount']);die('test');
    //}
    if( $passwordRetryCount == 3 ) {
        $messages[] = "Username or Password Incorrect - Login Failed.";
        return false;
     }

    //var_dump( $info[0]['employeeid'][0]);die;
    $con = DBConnection::getInstance(new DSN("kenuser"));
    $con->openConnection();
    $session = new Security_Session();
    $session->start($info[0]['employeeid'][0]);
    // var_dump($session->start($info[0]['employeeid'][0]));die;
    //header("Location: /");
    //var_dump($info[0]['employeeid'][0]);die;
    ldap_unbind($ldap);
    return $info;
}

}

source https://stackoverflow.com/questions/67862264/authentification-against-active-directory-from-symfony-5