Download von großen Daten via Webfrondend

Hallo zusammen,
ich habe ein Problem mit dem Webfrontend.
Wenn ich große Dateien (in diesem Fall ca. 350MB) über das Webfrontend herunter laden will, rennt der Brower (Firefox und Chrome) in einen timeout. Per Client ist alles OK.
Das passiert auch bei einer Freigabe per Link.
Interessanterweise wird im log gar nix dazu geloggt (loglevel = 0).
Auch das Apache2 error.log ist leer.

  • LXC-Container
  • Ubuntu 21.10
  • Nextcloud Version: 24.0.1
  • PHP Version: 8.0.8
  • Postgresql
  • Apache: 2.4.48

Meine /etc/php/8.0/cli/php.ini

[PHP]
engine = On
short_open_tag = Off
precision = 14
output_buffering = Off
zlib.output_compression = Off
implicit_flush = Off
unserialize_callback_func =
serialize_precision = -1
disable_functions =
disable_classes =
zend.enable_gc = On
zend.exception_ignore_args = On
zend.exception_string_param_max_len = 0
expose_php = On
max_execution_time = 3600
max_input_time = 3600
memory_limit = 512M
error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
display_errors = Off
display_startup_errors = Off
log_errors = On
log_errors_max_len = 1024
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
variables_order = "GPCS"
request_order = "GP"
register_argc_argv = Off
auto_globals_jit = On
post_max_size = 10240M
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
default_charset = "UTF-8"
doc_root =
user_dir =
enable_dl = Off
file_uploads = On
upload_max_filesize = 10240M
max_file_uploads = 20
allow_url_fopen = On
allow_url_include = Off
default_socket_timeout = 60
[CLI Server]
cli_server.color = On
[Date]
date.timezone = Europe/Berlin
[filter]
[iconv]
[imap]
[intl]
[sqlite3]
[Pcre]
[Pdo]
[Pdo_mysql]
pdo_mysql.default_socket=
[Phar]
[mail function]
SMTP = localhost
smtp_port = 25
mail.add_x_header = Off
[ODBC]
odbc.allow_persistent = On
odbc.check_persistent = On
odbc.max_persistent = -1
odbc.max_links = -1
odbc.defaultlrl = 4096
odbc.defaultbinmode = 1
[MySQLi]
mysqli.max_persistent = -1
mysqli.allow_persistent = On
mysqli.max_links = -1
mysqli.default_port = 3306
mysqli.default_socket =
mysqli.default_host =
mysqli.default_user =
mysqli.default_pw =
mysqli.reconnect = Off
[mysqlnd]
mysqlnd.collect_statistics = On
mysqlnd.collect_memory_statistics = Off
[OCI8]
[PostgreSQL]
pgsql.allow_persistent = On
pgsql.auto_reset_persistent = Off
pgsql.max_persistent = -1
pgsql.max_links = -1
pgsql.ignore_notice = 0
pgsql.log_notice = 0
[bcmath]
bcmath.scale = 0
[browscap]
[Session]
session.save_handler = files
redis.session.locking_enabled=1
redis.session.lock_retries=-1
redis.session.lock_wait_time=10000
session.use_strict_mode = 0
session.use_cookies = 1
session.use_only_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.cookie_samesite =
session.serialize_handler = php
session.gc_probability = 0
session.gc_divisor = 1000
session.gc_maxlifetime = 1440
session.referer_check =
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.sid_length = 26
session.trans_sid_tags = "a=href,area=href,frame=src,form="
session.sid_bits_per_character = 5
[Assertion]
zend.assertions = -1
[COM]
[mbstring]
[gd]
[exif]
[Tidy]
tidy.clean_output = Off
[soap]
soap.wsdl_cache_enabled=1
soap.wsdl_cache_dir="/tmp"
soap.wsdl_cache_ttl=86400
soap.wsdl_cache_limit = 5
[sysvshm]
[ldap]
ldap.max_links = -1
[dba]
[opcache]
opcache.enable=1
opcache.memory_consumption=512
opcache.interned_strings_buffer=64
opcache.max_accelerated_files=50000
opcache.max_wasted_percentage=15
opcache.validate_timestamps=0
opcache.revalidate_freq=0
opcache.save_comments=1
opcache.fast_shutdown=1
opcache.mmap_base=0x20000000
opcache.file_cache_fallback=1
[curl]
[openssl]
[ffi]

Meine config.php

<?php
$CONFIG = array (
  'instanceid' => '*****',
  'passwordsalt' => '*****',
  'secret' => '*****',
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'filelocking.enabled' => 'true',
  'redis' => 
  array (
    'host' => '/var/run/redis/redis-server.sock',
    'port' => 0,
    'dbindex' => 0,
    'timeout' => 1.5,
  ),
  'trusted_domains' => 
  array (
    0 => '*****.de',
  ),
  'datadirectory' => '/nc_data',
  'dbtype' => 'pgsql',
  'version' => '24.0.1.1',
  'overwrite.cli.url' => 'https://*****.de',
  'overwriteprotocol' => 'https',
  'preview_max_x' => 1024,
  'preview_max_y' => 768,
  'preview_max_scale_factor' => 1,
  'htaccess.RewriteBase' => '/',
  'dbname' => 'nextcloud',
  'dbhost' => 'localhost',
  'dbport' => '',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'oc_admin',
  'dbpassword' => '*****',
  'installed' => true,
  'default_phone_region' => 'DE',
  'mail_smtpmode' => 'smtp',
  'mail_smtphost' => '*****',
  'mail_sendmailmode' => 'smtp',
  'mail_smtpsecure' => 'tls',
  'mail_smtpauthtype' => 'LOGIN',
  'mail_smtpauth' => 1,
  'mail_domain' => '*****.de',
  'mail_from_address' => 'server',
  'mail_smtpport' => '587',
  'mail_smtpname' => '*****',
  'mail_smtppassword' => '*****',
  'default_language' => 'de',
  'default_locale' => 'de_DE',
  'maintenance' => false,
  'activity_expire_days' => 14,
  'auth.bruteforce.protection.enabled' => false,
  'blacklisted_files' => 
  array (
    0 => '.htaccess',
    1 => 'Thumbs.db',
    2 => 'thumbs.db',
  ),
  'cron_log' => true,
  'enable_previews' => true,
  'enabledPreviewProviders' => 
  array (
    0 => 'OC\\Preview\\PNG',
    1 => 'OC\\Preview\\JPEG',
    2 => 'OC\\Preview\\GIF',
    3 => 'OC\\Preview\\BMP',
    4 => 'OC\\Preview\\XBitmap',
    5 => 'OC\\Preview\\Movie',
    6 => 'OC\\Preview\\PDF',
    7 => 'OC\\Preview\\MP3',
    8 => 'OC\\Preview\\TXT',
    9 => 'OC\\Preview\\MarkDown',
  ),
  'filesystem_check_changes' => 0,
  'integrity.check.disabled' => false,
  'knowledgebaseenabled' => false,
  'log_rotate_size' => 104857600,
  'quota_include_external_storage' => false,
  'share_folder' => '/Freigaben',
  'skeletondirectory' => '',
  'theme' => '',
  'trashbin_retention_obligation' => 'auto, 14',
  'remember_login_cookie_lifetime' => '1800',
  'simpleSignUpLink.shown' => false,
  'versions_retention_obligation' => 'auto, 365',
  'loglevel' => 2,
  'config:system:set' => 
  array (
    'trusted_domains' => 
    array (
      1 => '*****.de',
    ),
  ),
);

Hat jemand eine Idee wo ich suchen kann? Bzw. wo der Fehler liegt?