Can not send downlink using chirpstack V4

problem: device uplink works fine, but downlink seems not working.

env: ubuntu 18.04
chirpstack docker: v4 rc2
using rak gateway
all configs using default except regions, i use AS923

  • i use chirpstack web ui to Enqueue a downlink
  • the logs just show Device queue-item enqueued but the device can not receive the downlink

my device profile

what i did wrong?

There is some important information missing:

  • Did the device join the network (ABP or OTAA)?
  • Is this a Class-A/B/C device?
  • Did the device send an uplink after the enqueue?
  • Did the device join the network (ABP or OTAA)?
    Yes, using OTAA
  • Is this a Class-A/B/C device?
    class A
  • Did the device send an uplink after the enqueue?
    Yes,

Can you share the LoRaWAN frames? As well did you see any errors?

i can’t see any error log on the terminal

after i edited as923.toml, add extra_channels to use more channels(i confirmed gateway support and enabled these channels)

  [[network_server.network_settings.extra_channels]]
  frequency=923200000
  min_dr=0
  max_dr=5

  [[network_server.network_settings.extra_channels]]
  frequency=923400000
  min_dr=0
  max_dr=5

  [[network_server.network_settings.extra_channels]]
  frequency=923600000
  min_dr=0
  max_dr=5

  [[network_server.network_settings.extra_channels]]
  frequency=923800000
  min_dr=0
  max_dr=5

  [[network_server.network_settings.extra_channels]]
  frequency=924000000
  min_dr=0
  max_dr=5
  
  [[network_server.network_settings.extra_channels]]
  frequency=924200000
  min_dr=0
  max_dr=5

  [[network_server.network_settings.extra_channels]]
  frequency=924400000
  min_dr=0
  max_dr=5

when i restart chirpstack, the downlink not working;

but finally i remove these lines and then restart chirpstack the downlink works fine. (maybe 9232, 9234 was default channels? sometimes i can see 9232,9234 in lorawan frames even i remove them)

  [[network_server.network_settings.extra_channels]]
  frequency=923200000
  min_dr=0
  max_dr=5

  [[network_server.network_settings.extra_channels]]
  frequency=923400000
  min_dr=0
  max_dr=5