Chirpstack keeps on sending NewChannelReq, even after NewChannelAns DR + Channel OK. End device has also implemented the new frequencies. LinkADRReq never sent, device keeps sending at DR0/SF12
Chirpstack v4.13.0
Device: OTX-18, custom LoRaWAN stack V0001.D312
LoRaWAN MAC Version: 1.0.3 / Class C
[
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataDown",
"major": "LoRaWANR1"
},
"mic": [
33,
23,
72,
210
],
"payload": {
"f_port": null,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 11,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": false,
"class_b": false,
"f_opts_len": 12,
"f_pending": false
},
"f_opts": [
{
"NewChannelReq": {
"ch_index": 6,
"freq": 867700000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 7,
"freq": 867900000,
"max_dr": 5,
"min_dr": 0
}
}
]
},
"frm_payload": null
}
},
"tx_info": {
"context": "mLMRDA==",
"frequency": 867300000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"polarizationInversion": true,
"spreadingFactor": 12
}
},
"power": 16,
"timing": {
"delay": {
"delay": "1s"
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataUp",
"major": "LoRaWANR1"
},
"mic": [
188,
209,
123,
220
],
"payload": {
"f_port": 1,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 11,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": true,
"class_b": false,
"f_opts_len": 6,
"f_pending": false
},
"f_opts": [
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
}
]
},
"frm_payload": "cafe01"
}
},
"rx_info": [
{
"channel": 4,
"context": "mLMRDA==",
"crcStatus": "CRC_OK",
"gatewayId": "5030354123574750",
"gwTime": "2025-10-20T11:22:23.926039+00:00",
"location": {
"latitude": 52.34614160575181,
"longitude": 6.018362045288087
},
"nsTime": "2025-10-20T11:22:23.986917210+00:00",
"rssi": -63,
"snr": 6.25,
"uplinkId": 53505
}
],
"tx_info": {
"frequency": 867300000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"spreadingFactor": 12
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataDown",
"major": "LoRaWANR1"
},
"mic": [
138,
110,
32,
77
],
"payload": {
"f_port": 0,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 10,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": false,
"class_b": false,
"f_opts_len": 0,
"f_pending": false
},
"f_opts": []
},
"frm_payload": [
{
"NewChannelReq": {
"ch_index": 3,
"freq": 867100000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 4,
"freq": 867300000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 5,
"freq": 867500000,
"max_dr": 5,
"min_dr": 0
}
}
]
}
},
"tx_info": {
"context": "ho3lPA==",
"frequency": 868300000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"polarizationInversion": true,
"spreadingFactor": 12
}
},
"power": 16,
"timing": {
"delay": {
"delay": "1s"
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataUp",
"major": "LoRaWANR1"
},
"mic": [
225,
228,
152,
58
],
"payload": {
"f_port": 1,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 10,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": true,
"class_b": false,
"f_opts_len": 4,
"f_pending": false
},
"f_opts": [
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
}
]
},
"frm_payload": "cafe01"
}
},
"rx_info": [
{
"channel": 1,
"context": "ho3lPA==",
"crcStatus": "CRC_OK",
"gatewayId": "5030354123574750",
"gwTime": "2025-10-20T11:17:19.502276+00:00",
"location": {
"latitude": 52.34614160575181,
"longitude": 6.018362045288087
},
"nsTime": "2025-10-20T11:17:19.564832351+00:00",
"rfChain": 1,
"rssi": -71,
"snr": 7,
"uplinkId": 62721
}
],
"tx_info": {
"frequency": 868300000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"spreadingFactor": 12
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataDown",
"major": "LoRaWANR1"
},
"mic": [
52,
28,
132,
74
],
"payload": {
"f_port": null,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 9,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": false,
"class_b": false,
"f_opts_len": 12,
"f_pending": false
},
"f_opts": [
{
"NewChannelReq": {
"ch_index": 6,
"freq": 867700000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 7,
"freq": 867900000,
"max_dr": 5,
"min_dr": 0
}
}
]
},
"frm_payload": null
}
},
"tx_info": {
"context": "hIiRLA==",
"frequency": 868500000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"polarizationInversion": true,
"spreadingFactor": 12
}
},
"power": 16,
"timing": {
"delay": {
"delay": "1s"
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataUp",
"major": "LoRaWANR1"
},
"mic": [
110,
78,
133,
90
],
"payload": {
"f_port": 1,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 9,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": true,
"class_b": false,
"f_opts_len": 6,
"f_pending": false
},
"f_opts": [
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
}
]
},
"frm_payload": "cafe01"
}
},
"rx_info": [
{
"channel": 2,
"context": "hIiRLA==",
"crcStatus": "CRC_OK",
"gatewayId": "5030354123574750",
"gwTime": "2025-10-20T11:16:45.598895+00:00",
"location": {
"latitude": 52.34614160575181,
"longitude": 6.018362045288087
},
"nsTime": "2025-10-20T11:16:45.655272726+00:00",
"rfChain": 1,
"rssi": -66,
"snr": 5.5,
"uplinkId": 46593
}
],
"tx_info": {
"frequency": 868500000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"spreadingFactor": 12
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataDown",
"major": "LoRaWANR1"
},
"mic": [
68,
24,
17,
75
],
"payload": {
"f_port": 0,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 8,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": false,
"class_b": false,
"f_opts_len": 0,
"f_pending": false
},
"f_opts": []
},
"frm_payload": [
{
"NewChannelReq": {
"ch_index": 3,
"freq": 867100000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 4,
"freq": 867300000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 5,
"freq": 867500000,
"max_dr": 5,
"min_dr": 0
}
}
]
}
},
"tx_info": {
"context": "gLHc9A==",
"frequency": 868100000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"polarizationInversion": true,
"spreadingFactor": 12
}
},
"power": 16,
"timing": {
"delay": {
"delay": "1s"
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataUp",
"major": "LoRaWANR1"
},
"mic": [
17,
61,
108,
23
],
"payload": {
"f_port": 1,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 8,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": true,
"class_b": false,
"f_opts_len": 4,
"f_pending": false
},
"f_opts": [
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
}
]
},
"frm_payload": "cafe01"
}
},
"rx_info": [
{
"context": "gLHc9A==",
"crcStatus": "CRC_OK",
"gatewayId": "5030354123574750",
"gwTime": "2025-10-20T11:15:41.196851+00:00",
"location": {
"latitude": 52.34614160575181,
"longitude": 6.018362045288087
},
"nsTime": "2025-10-20T11:15:41.253095833+00:00",
"rfChain": 1,
"rssi": -69,
"snr": 6.75,
"uplinkId": 65025
}
],
"tx_info": {
"frequency": 868100000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"spreadingFactor": 12
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataDown",
"major": "LoRaWANR1"
},
"mic": [
59,
110,
134,
235
],
"payload": {
"f_port": null,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 7,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": false,
"class_b": false,
"f_opts_len": 12,
"f_pending": false
},
"f_opts": [
{
"NewChannelReq": {
"ch_index": 6,
"freq": 867700000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 7,
"freq": 867900000,
"max_dr": 5,
"min_dr": 0
}
}
]
},
"frm_payload": null
}
},
"tx_info": {
"context": "dyR1RA==",
"frequency": 867900000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"polarizationInversion": true,
"spreadingFactor": 12
}
},
"power": 16,
"timing": {
"delay": {
"delay": "1s"
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataUp",
"major": "LoRaWANR1"
},
"mic": [
12,
92,
59,
70
],
"payload": {
"f_port": 1,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 7,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": true,
"class_b": false,
"f_opts_len": 6,
"f_pending": false
},
"f_opts": [
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
}
]
},
"frm_payload": "cafe01"
}
},
"rx_info": [
{
"channel": 7,
"context": "dyR1RA==",
"crcStatus": "CRC_OK",
"gatewayId": "5030354123574750",
"gwTime": "2025-10-20T11:13:00.928310+00:00",
"location": {
"latitude": 52.34614160575181,
"longitude": 6.018362045288087
},
"nsTime": "2025-10-20T11:13:00.986491019+00:00",
"rssi": -66,
"snr": 7,
"uplinkId": 44801
}
],
"tx_info": {
"frequency": 867900000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"spreadingFactor": 12
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataDown",
"major": "LoRaWANR1"
},
"mic": [
187,
212,
251,
221
],
"payload": {
"f_port": 0,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 6,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": false,
"class_b": false,
"f_opts_len": 0,
"f_pending": false
},
"f_opts": []
},
"frm_payload": [
{
"NewChannelReq": {
"ch_index": 3,
"freq": 867100000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 4,
"freq": 867300000,
"max_dr": 5,
"min_dr": 0
}
},
{
"NewChannelReq": {
"ch_index": 5,
"freq": 867500000,
"max_dr": 5,
"min_dr": 0
}
}
]
}
},
"tx_info": {
"context": "dReKrA==",
"frequency": 867700000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"polarizationInversion": true,
"spreadingFactor": 12
}
},
"power": 16,
"timing": {
"delay": {
"delay": "1s"
}
}
}
},
{
"phy_payload": {
"mhdr": {
"f_type": "UnconfirmedDataUp",
"major": "LoRaWANR1"
},
"mic": [
65,
60,
221,
222
],
"payload": {
"f_port": 1,
"fhdr": {
"devaddr": "0005f11f",
"f_cnt": 6,
"f_ctrl": {
"ack": false,
"adr": true,
"adr_ack_req": true,
"class_b": false,
"f_opts_len": 4,
"f_pending": false
},
"f_opts": [
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
},
{
"NewChannelAns": {
"channel_freq_ok": true,
"dr_range_ok": true
}
}
]
},
"frm_payload": "cafe01"
}
},
"rx_info": [
{
"channel": 6,
"context": "dReKrA==",
"crcStatus": "CRC_OK",
"gatewayId": "5030354123574750",
"gwTime": "2025-10-20T11:12:26.528236+00:00",
"location": {
"latitude": 52.34614160575181,
"longitude": 6.018362045288087
},
"nsTime": "2025-10-20T11:12:26.579525100+00:00",
"rssi": -69,
"snr": 5.25,
"uplinkId": 39169
}
],
"tx_info": {
"frequency": 867700000,
"modulation": {
"lora": {
"bandwidth": 125000,
"codeRate": "CR_4_5",
"spreadingFactor": 12
}
}
}
}
]
