JoinRequest then JoinAccept but no Join message

# This configuration configures ChirpStack Network Server for the US915 band using a MQTT
# broker to communicate with the gateways. Many options and defaults have been
# omitted for simplicity.
#
# For other bands, see the ./examples/ sub-directory.
#
# See https://www.chirpstack.io/network-server/install/config/ for a full
# configuration example and documentation.

[general]
log_level=4

# PostgreSQL settings.
#
# Please note that PostgreSQL 9.5+ is required.
[postgresql]
# PostgreSQL dsn (e.g.: postgres://user:password@hostname/database?sslmode=disable).
#
# Besides using an URL (e.g. 'postgres://user:password@hostname/database?sslmode=disable')
# it is also possible to use the following format:
# 'user=chirpstack_ns dbname=chirpstack_ns sslmode=disable'.
#
# The following connection parameters are supported:
#
# * dbname - The name of the database to connect to
# * user - The user to sign in as
# * password - The user's password
# * host - The host to connect to. Values that start with / are for unix domain sockets. (default is localhost)
# * port - The port to bind to. (default is 5432)
# * sslmode - Whether or not to use SSL (default is require, this is not the default for libpq)
# * fallback_application_name - An application_name to fall back to if one isn't provided.
# * connect_timeout - Maximum wait for connection, in seconds. Zero or not specified means wait indefinitely.
# * sslcert - Cert file location. The file must contain PEM encoded data.
# * sslkey - Key file location. The file must contain PEM encoded data.
# * sslrootcert - The location of the root certificate file. The file must contain PEM encoded data.
#
# Valid values for sslmode are:
#
# * disable - No SSL
# * require - Always SSL (skip verification)
# * verify-ca - Always SSL (verify that the certificate presented by the server was signed by a trusted CA)
# * verify-full - Always SSL (verify that the certification presented by the server was signed by a trusted CA and the server host name matches the one in the certificate)
#dsn="postgres://localhost/chirpstack_ns_ns?sslmode=disable"
 dsn="postgres://chirpstack_ns:dbpassword@localhost/chirpstack_ns?sslmode=disable"


# Redis settings
#
# Please note that Redis 2.6.0+ is required.
[redis]
# Redis url (e.g. redis://user:password@hostname/0)
#
# For more information about the Redis URL format, see:
# https://www.iana.org/assignments/uri-schemes/prov/redis
url="redis://localhost:6379"


# Network-server settings.
[network_server]
# Network identifier (NetID, 3 bytes) encoded as HEX (e.g. 010203)
net_id="000000"


  # LoRaWAN regional band configuration.
  #
  # Note that you might want to consult the LoRaWAN Regional Parameters
  # specification for valid values that apply to your region.
  # See: https://www.lora-alliance.org/lorawan-for-developers
  [network_server.band]
    name="US_902_928"
    #name="US915"

    # LoRaWAN network related settings.
    [network_server.network_settings]
    downlink_tx_power=18

    # Enable only a given sub-set of channels
    #
    # Use this when ony a sub-set of the by default enabled channels are being
    # used. For example when only using the first 8 channels of the US band.
    # Note: when left blank, all channels will be enabled.
    enabled_uplink_channels=[0, 1, 2, 3, 4, 5, 6, 7, 64]
    #enabled_uplink_channels=[8, 9, 10, 11, 12, 13, 14, 15, 65]

    #rx_frequency=923300000
    #rx_frequency=923900000

    # Class B settings
    #[network_server.network_settings.class_b]
    # Ping-slot data-rate.
   # ping_slot_dr=0

    # Ping-slot frequency (Hz)
    #
    # Set this to 0 to use the default frequency plan for the configured region
    # (which could be frequency hopping).
   # ping_slot_frequency=0


  # Network-server API
  #
  # This is the network-server API that is used by ChirpStack Application Server or other
  # custom components interacting with ChirpStack Network Server.
  [network_server.api]
  # ip:port to bind the api server
  bind="0.0.0.0:8000"


  # Backend defines the gateway backend settings.
  #
  # The gateway backend handles the communication with the gateway(s) part of
  # the LoRaWAN network.
  [network_server.gateway.backend]
  # Backend
  type="mqtt"


    # MQTT gateway backend settings.
    #
    # This is the backend communicating with the LoRa gateways over a MQTT broker.
    [network_server.gateway.backend.mqtt]
    # MQTT topic templates for the different MQTT topics.
    #
    # The meaning of these topics are documented at:
    # https://www.chirpstack.io/gateway-bridge/
    #
    # The default values match the default expected configuration of the
    # ChirpStack Gateway Bridge MQTT backend. Therefore only change these values when
    # absolutely needed.

    # Event topic template.
    event_topic="gateway/+/event/+"

    # Command topic template.
    #
    # Use:
    #   * "{{ .GatewayID }}" as an substitution for the LoRa gateway ID
    #   * "{{ .CommandType }}" as an substitution for the command type
    command_topic_template="gateway/{{ .GatewayID }}/command/{{ .CommandType }}"

    # MQTT server (e.g. scheme://host:port where scheme is tcp, ssl or ws)
    server="tcp://localhost:1883"

    # Connect with the given username (optional)
    username=""

    # Connect with the given password (optional)
    password=""


# Metrics collection settings.
[metrics]
# Timezone
#
# The timezone is used for correctly aggregating the metrics (e.g. per hour,
# day or month).
# Example: "Europe/Amsterdam" or "Local" for the the system's local time zone.
timezone="Local"


# Join-server settings.
[join_server]

  # Default join-server settings.
  #
  # This join-server will be used when resolving the JoinEUI is set to false
  # or as a fallback when resolving the JoinEUI fails.
  [join_server.default]
  # hostname:port of the default join-server
  #
  # This API is provided by ChirpStack Application Server.
  server="http://localhost:8003"