Hi,
we have a couple of TRB255 with sim card of 1nce. The devices are a different location in our building some using the telekom network some the telefonica network. If we have luck, the devices are online for some minutes, if not, they even do not connect. In each order they lose their internet connection after a short time.
We set manually the APN and also added 8.8.8.8 as DNS. Why does the device loses the connection.
BTW: we have mobile phones in both networks here, working fine.
Here is my GSM Log
[GSM INFORMATION]
{
"mdm_stats": {
"num_modems": 1,
"blocked_modems": [
]
}
}
[INFO for gsm.modem0]
Running info...
{
"name": "Quectel BG96",
"model": "BG96",
"manuf": "Quectel",
"driver": "Quectel BG96 AT",
"usb_id": "1-1.4",
"vid_pid": "2c7c:0296",
"tty_port": "/dev/ttyUSB4",
"gps_port": "/dev/ttyUSB3",
"data_port": "",
"baudrate": 115200,
"aux_port": "/dev/modem0",
"builtin": true,
"primary": true,
"simcount": 2,
"modem_func_id": 3,
"is_busy": 0,
"pending": 0,
"state_id": 1,
"state": "Idle",
"last_active": "2024-03-02 17:33:30",
"ipv6": true,
"multi_apn": true,
"rmnet": true,
"dynamic_mtu": true,
"service_mode_list": [
"2G",
"4G"
],
"band_list": [
"GSM_850",
"GSM_900",
"GSM_1800",
"GSM_1900",
"LTE_B1",
"LTE_B2",
"LTE_B3",
"LTE_B4",
"LTE_B5",
"LTE_B8",
"LTE_B12",
"LTE_B13",
"LTE_B18",
"LTE_B19",
"LTE_B20",
"LTE_B26",
"LTE_B28",
"LTE_NB1",
"LTE_NB2",
"LTE_NB3",
"LTE_NB4",
"LTE_NB5",
"LTE_NB8",
"LTE_NB12",
"LTE_NB13",
"LTE_NB18",
"LTE_NB19",
"LTE_NB20",
"LTE_NB26",
"LTE_NB28"
],
"cache": {
"firmware": "BG96MAR02A11M1G_01.016.01.016",
"imei": "862427061512705",
"serial_num": "MPC23GP0D002873",
"service_mode": 2,
"service_mode_str": "No service",
"pin_state": 1,
"pin_state_str": "OK",
"gsm_bands": 15,
"wcdma_bands": 0,
"lte_low_bands": 168695967,
"lte_high_bands": 0,
"lte_nb_low_bands": 168695967,
"lte_nb_high_bands": 0,
"sim": 1,
"sim_change": 1,
"sim_pin1": 3,
"sim_puk1": 10,
"imsi": "901405104678191",
"sms_mode": 1,
"sms_mode_str": "PDU Mode",
"iccid": "89882280666046781914",
"op_format": 1,
"cell_info": [
],
"net_mode": 2,
"net_mode_str": "No service",
"net_mode_sel": 2,
"band": 0,
"band_str": "Unknown",
"ca_info": [
],
"temperature": 430,
"network_state": 2,
"reg_stat": 2,
"reg_stat_str": "Searching"
},
"cache_stats": {
"heap_usage": "1 KB",
"item_count": 33
},
"comm_stats": {
"tty_tx": 7176,
"tty_rx": 18218,
"tx_highest": 42,
"rx_highest": 389,
"aux_fd_num": 0,
"log_len": 5560,
"log_cap": 33792,
"recv_pipe_fd": 7,
"send_pipe_fd": 8
},
"parser_stats": {
"c_grow_cnt": 1,
"c_len": 0,
"c_cap": 1024,
"u_grow_cnt": 1,
"u_len": 0,
"u_cap": 1024,
"h_grow_cnt": 1,
"h_len": 0,
"h_cap": 1024,
"h_rst_cnt": 0
},
"evtmgr_stats": {
"recv_pipe_fd": 14,
"send_pipe_fd": 15
}
}
get_firmware:
{
"firmware": "BG96MAR02A11M1G_01.016.01.016"
}
get_iccid:
{
"iccid": "89882280666046781914"
}
get_serial:
{
"serial": "MPC23GP0D002873"
}
get_sim_slot:
{
"index": 1
}
get_pin_count:
{
"sim_pin1": 3,
"sim_puk1": 10,
"sim_pin2": 3,
"sim_puk2": 10
}
get_pin_state:
{
"state_id": 1,
"state": "OK"
}
get_temperature:
{
"temperature_value": 430
}
get_func:
{
"func_id": 2,
"func": "Full"
}
get_network_info:
{
"net_mode": "No service",
"net_mode_id": 2,
"net_mode_sel": 2,
"band": "Unknown",
"band_id": 0,
"opernum": 0
}
get_signal_query:
{
"net_mode_id": 2,
"net_mode": "No service"
}
get_serving_cell:
{
"list": [
]
}
get_neighbour_cells:
{
"list": [
]
}
get_net_reg_stat:
{
"mode_id": 3,
"mode": "Enabled (with location information)",
"max_mode_id": 3,
"max_mode": "Enabled (with location information)",
"status_id": 2,
"status": "Searching"
}
get_net_greg_stat:
{
"mode_id": 3,
"mode": "Enabled (with location information)",
"max_mode_id": 3,
"max_mode": "Enabled (with location information)",
"status_id": 4,
"status": "Unknown"
}
get_net_ereg_stat:
{
"mode_id": 3,
"mode": "Enabled (with location information)",
"max_mode_id": 3,
"max_mode": "Enabled (with location information)",
"status_id": 2,
"status": "Searching"
}
get_service_provider:
{
"request": "AT+QSPN\r",
"response": "\r\nERROR\r\n",
"errno": 5,
"error": "Invalid response"
}
get_mbn_list:
{
"list": [
{
"index": 0,
"selected": 0,
"activated": 0,
"name": "Att_Non_Volte_Lab",
"version": "0x05010310",
"release_date": "201712191"
},
{
"index": 1,
"selected": 0,
"activated": 0,
"name": "China_Common",
"version": "0x05802800",
"release_date": "201806231"
},
{
"index": 2,
"selected": 1,
"activated": 1,
"name": "ROW_Commercial",
"version": "0x05800801",
"release_date": "201806301"
},
{
"index": 3,
"selected": 0,
"activated": 0,
"name": "Verizon_Commercial",
"version": "0x05803801",
"release_date": "201806301"
},
{
"index": 4,
"selected": 0,
"activated": 0,
"name": "Telstra_Commercial",
"version": "0x05801806",
"release_date": "201903191"
},
{
"index": 5,
"selected": 0,
"activated": 0,
"name": "SKT_Commercial",
"version": "0x05804803",
"release_date": "201907061"
}
]
}
get_ps_att_state:
{
"state_id": 1,
"state": "detached"
}
get_pdp_ctx_list:
{
"list": [
{
"cid": 1,
"type": "ip",
"type_id": 0,
"apn": "iot.1nce.net",
"dt_comp": "off",
"dt_comp_id": 0,
"hdr_comp": "off",
"hdr_comp_id": 0,
"ipv4_alloc": "nas",
"ipv4_alloc_id": 0,
"req_tp": "generic",
"req_tp_id": 0
},
{
"cid": 2,
"type": "ipv4v6",
"type_id": 3,
"apn": "IMS",
"dt_comp": "off",
"dt_comp_id": 0,
"hdr_comp": "off",
"hdr_comp_id": 0,
"ipv4_alloc": "nas",
"ipv4_alloc_id": 0,
"req_tp": "generic",
"req_tp_id": 0
}
]
}
get_active_pdp_ctx_list:
{
"list": [
{
"cid": 1,
"state_id": 1,
"state": "activated"
},
{
"cid": 2,
"state_id": 2,
"state": "deactivated"
}
]
}
get_pdp_addr_list:
{
"list": [
{
"cid": 1,
"addr": "10.205.113.3"
}
]
}
get_ims_state:
{
"mode_id": 1,
"mode": "mbn_dependant"
}
get_id_info:
{
"manuf": "Quectel",
"model": "BG96",
"firmware": "BG96MAR02A11M1G_01.016.01.016",
"raw": "\r\nQuectel\r\nBG96\r\nRevision: BG96MAR02A11M1G_01.016.01.016\r\n\r\nOK\r\n"
}
get_default_modem_func:
{
"id": 3,
"type": "Modem low power mode"
}
get_error_msg_fmt:
{
"format_id": 3,
"format": "Verbose"
}
get_crc_fmt:
{
"format_id": 1,
"format": "Disabled"
}
get_urc_port:
{
"port": "usbat",
"default": "usbat"
}
get_mod_status:
{
"status_id": 2,
"status": "Ready"
}
get_flash_state:
{
"cefs_restore_cnt": 0,
"cefs_restore_state": 0,
"cefs_restore_state_str": "Normal"
}
get_auto_tz_update:
{
"enabled": true
}
get_dpo_mode:
{
"mode_id": 3,
"mode": "enable_no_eps"
}
get_gea_algo:
{
"stat_id": 12
}
get_signal_query_cfg:
{
"config_id": 1,
"config": "URC Enabled"
}
get_net_reg_stat_all:
{
"status": "Searching",
"status_id": 2
}
get_mbn_auto_sel:
{
"mode_id": 2,
"mode": "Enabled"
}
get_net_mode:
{
"mode_id": 1,
"mode": "Auto"
}
get_net_mode_tech:
{
"mode_id": 1,
"mode": "Auto"
}
get_net_mode_type:
{
"mode_id": 1,
"mode": "Auto"
}
get_roaming_svc:
{
"mode_id": 1,
"mode": "Disabled"
}
get_operator_selection:
{
"mode_id": 1,
"mode": "Auto"
}
get_net_cat:
{
"mode_id": 3,
"mode": "m1_and_nb1"
}
get_attached_pdp_ctx_list:
{
"list": [
]
}
get_ca_info:
{
"list": [
]
}
get_pdp_profile_registry:
{
"list": [
{
"cid": 1,
"cscf": 0,
"dhcp": 0,
"cn": 0
},
{
"cid": 2,
"cscf": 0,
"dhcp": 0,
"cn": 0
}
]
}
get_bands:
{
"bands": [
"GSM 850",
"GSM 900",
"GSM 1800",
"GSM 1900",
"LTE B1",
"LTE B2",
"LTE B3",
"LTE B4",
"LTE B5",
"LTE B8",
"LTE B12",
"LTE B13",
"LTE B18",
"LTE B19",
"LTE B20",
"LTE B26",
"LTE B28",
"LTE NB1",
"LTE NB2",
"LTE NB3",
"LTE NB4",
"LTE NB5",
"LTE NB8",
"LTE NB12",
"LTE NB13",
"LTE NB18",
"LTE NB19",
"LTE NB20",
"LTE NB26",
"LTE NB28"
]
}
get_imsi:
{
"imsi": "901405104678191"
}
get_sim_soft_hotplug:
{
"request": "AT+QCFG=\"sim/recovery\"\r",
"response": "\r\nERROR\r\n",
"errno": 7,
"error": "Functionality not supported"
}
get_sms_evt_rep_cfg:
{
"mode": 2,
"mt": 1,
"bm": 0,
"ds": 0,
"bfr": 0
}
get_sms_mode:
{
"format_id": 1,
"format": "PDU Mode"
}
get_msg_storage:
{
"mem1": {
"storage": "(U)SIM storage",
"storage_id": 1,
"used": 0,
"total": 20
},
"mem2": {
"storage": "(U)SIM storage",
"storage_id": 1,
"used": 0,
"total": 20
},
"mem3": {
"storage": "(U)SIM storage",
"storage_id": 1,
"used": 0,
"total": 20
}
}
get_incoming_voice_calls:
{
"list": [
]
}
get_time {"mode":"gmt"}:
{
"request": "AT+QLTS=1\r",
"response": "\r\nOK\r\n",
"errno": 5,
"error": "Invalid response"
}
get_time {"mode":"local"}:
{
"request": "AT+QLTS=2\r",
"response": "\r\nOK\r\n",
"errno": 5,
"error": "Invalid response"
}
AT+QPRTPARA=4
{
"request": "AT+QPRTPARA=4\r",
"response": "\r\n+QPRTPARA: 1,0,268,0,0,0,0,0,0,0,0,0,0,0\r\n\r\nOK\r\n"
}
AT+QCFG="dbgctl"
{
"request": "AT+QCFG=\"dbgctl\"\r",
"response": "\r\nERROR\r\n"
}
Hi,
It seems that your device is not connecting to the network or registering with it. You can see it when router tries to get service provider’s name:
Here is how it looks when it is connected:
You mentioned that you set the APN manually. Have you tried connecting without manual settings? Did the connection establish? Please give it a try and let me know the results.
Best regards,
Marijus
Hi,
first we used the auto-setting. We changed it because of the issue, as we read in a forum that auto setting could be the reason for the issue. However, it is not working with auto-settings, and it is not working with manual settings. During the last days we made some test with disabling the NB option, and just select M1, that seems to be better, but we are not yet sure about this. Our provider and our sims offer NB as well.
Can anyone confirm issues with Narrowband and or 1nce?
Hi,
It’s probably a SIM card problem. To confirm, please insert a SIM card from another carrier into the TRB255 and see if it establishes a network connection.
Best regards,
Marijus
Do you have a recommendation for EU wide lowcost (IoT) Sim cards that works for other client?
Hi,
I apologize, but we don’t have specific recommendations for the given parameters, as it’s a highly subjective matter.
Best regards,
Marijus
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