Problem with SF/DR

ChirpStack Network Server
#1

I have problem with my network/gateway server, that I can not get to work other SF then 12. I don’t know what settings I need to change to get it to work. I also tried to find answer from this forum.

/etc/chirpstack-network-server/chirpstack-network-server.toml
[network_server.band]
name=“EU868”

[network_server.network_settings]                                                       
                                                                                        
installation_margin = 10                                                                
                                 
rx_window=0                      
rx1_delay=5                      
rx1_dr_offset=0                  
rx2_dr=-1                        
rx2_frequency=-1                 
rx2_prefer_on_rx1_dr_lt=0        
rx2_prefer_on_link_budget=false  
gateway_prefer_min_margin=10     
downlink_tx_power=-1             
disable_mac_commands=false       
disable_adr=false              
max_mac_command_error_count=3  
                               
  [[network_server.network_settings.extra_channels]]
  frequency=867100000                               
  min_dr=0                                          
  max_dr=5       

  [[network_server.network_settings.extra_channels]]                                    
  frequency=867300000                                                                   
  min_dr=0                                                                              
  max_dr=5                                          
                                                    
  [[network_server.network_settings.extra_channels]]
  frequency=867500000                               
  min_dr=0                                          
  max_dr=5                                          
                                                    
  [[network_server.network_settings.extra_channels]]
  frequency=867700000                               
  min_dr=0                                          
  max_dr=5                                          
                                                    
  [[network_server.network_settings.extra_channels]]
  frequency=867900000                               
  min_dr=0                                          
  max_dr=5

** /etc/chirpstack-gateway-bridge/chirpstack-gateway-bridge.toml**
[backend]
type=“semtech_udp”

          [backend.semtech_udp]
          udp_bind = "0.0.0.0:1700"
          skip_crc_check = false
          fake_rx_time=false

Gateway using default config:

Also over application server is created external channels under Gateway-Profiles →

Enabled channels 0, 1, 2

and external channels:

Ch1:
LoRa | 867100000 | 125kHz | 7,8,9,10,11,12
Ch2:
LoRa | 867300000 | 125kHz | 7,8,9,10,11,12
Ch3:
LoRa | 867500000 | 125kHz | 7,8,9,10,11,12
Ch4:
LoRa | 867700000 | 125kHz | 7,8,9,10,11,12
Ch5:
LoRa | 867900000 | 125kHz | 7,8,9,10,11,12
Ch6:
LoRa | 868300000 | 250kHz | 7
Ch7:
FSK | 868800000 | 125kHz | 50000

If device joins to server then joining with other SF then 12

* bandwidth:125
* spreadingFactor:7
* codeRate:"4/5"
* polarizationInversion:true

But after that will start using only SF12

Device-profile is.
MAC: 1.0.2
Regional A
Device supports OTAA

Device works fine, connects and TX/RX works but can not change SF/DR dynamically and works only with DR0 / SF12.

Do I miss some settings what I need to change or looking in wrong place? I know that I do not need to use ADR settings for that, this has to work also with OTAA only. Can somebody help me with that? :slight_smile:

#2

Can close this problem here.

Every settings was OK just somehow service-profile didn’t worked. I created new one and everything started to work. :flushed: