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Failure connecting to example.com while running sample: https_client

Jacek Majda

After programming the sample to my nRF9160 DK, I opened the terminal emulator and I observed the following messages:

1. HTTPS client sample started

2. Provisioning certificate

3. Waiting for network..OK

4. Connecting to example.com

5. connect() failed, err 116

I am using the following:

1. nRFD9160 DK v0.8.2

2. Windows10 O.S. version:20H2, OS build:19042.631

3. nRF Connect v 3.7.0

4. nRF Connect SDK v 1.6.1

I attach the log file from the LTE Link Monitor below:

Fullscreen 2021-09-04 log file from the LTE Link Monitor.txt Download 
2021-09-04T19:59:12.600Z INFO Application data folder: C:\Users\Administrator\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2021-09-04T19:59:12.840Z DEBUG App pc-nrfconnect-linkmonitor v1.1.10 official
2021-09-04T19:59:12.840Z DEBUG App path: C:\Users\Administrator\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2021-09-04T19:59:12.840Z DEBUG nRFConnect 3.7.0, required by the app is (^3.6.0)
2021-09-04T19:59:12.840Z DEBUG nRFConnect path: C:\Users\Administrator\AppData\Local\Programs\nrfconnect\resources\app.asar
2021-09-04T19:59:12.841Z DEBUG HomeDir: C:\Users\Administrator
2021-09-04T19:59:12.841Z DEBUG TmpDir: C:\Users\ADMINI~1\AppData\Local\Temp
2021-09-04T19:59:13.059Z VERBOSE Could not fetch serial number for serial port at COM3
2021-09-04T19:59:20.249Z INFO Modem port is opened
2021-09-04T19:59:39.135Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-04T19:59:39.395Z DEBUG modem << Flash regionsDomainPermissions
2021-09-04T19:59:39.399Z DEBUG modem << 00 01 0x00000 0x10000 Securerwxl
2021-09-04T19:59:39.404Z DEBUG modem << 02 31 0x10000 0x100000 Non-Securerwxl
2021-09-04T19:59:39.408Z DEBUG modem << Non-secure callable region 0 placed in flash region 1 with size 32.
2021-09-04T19:59:39.411Z DEBUG modem << SRAM regionDomainPermissions
2021-09-04T19:59:39.413Z DEBUG modem << 00 07 0x00000 0x10000 Securerwxl
2021-09-04T19:59:39.415Z DEBUG modem << 08 31 0x10000 0x40000 Non-Securerwxl
2021-09-04T19:59:39.418Z DEBUG modem << PeripheralDomainStatus
2021-09-04T19:59:39.422Z DEBUG modem << 00 NRF_P0               Non-SecureOK
2021-09-04T19:59:39.424Z DEBUG modem << 01 NRF_CLOCK            Non-SecureOK
2021-09-04T19:59:39.426Z DEBUG modem << 02 NRF_RTC0             Non-SecureOK
2021-09-04T19:59:39.428Z DEBUG modem << 03 NRF_RTC1             Non-SecureOK
2021-09-04T19:59:39.430Z DEBUG modem << 04 NRF_NVMC             Non-SecureOK
2021-09-04T19:59:39.436Z DEBUG modem << 05 NRF_UARTE1           Non-SecureOK
2021-09-04T19:59:39.439Z DEBUG modem << 06 NRF_UARTE2           SecureSKIP
2021-09-04T19:59:39.441Z DEBUG modem << 07 NRF_TWIM2            Non-SecureOK
2021-09-04T19:59:39.443Z DEBUG modem << 08 NRF_SPIM3            Non-SecureOK
2021-09-04T19:59:39.445Z DEBUG modem << 09 NRF_TIMER0           Non-SecureOK
2021-09-04T19:59:39.447Z DEBUG modem << 10 NRF_TIMER1           Non-SecureOK
2021-09-04T19:59:39.465Z DEBUG modem << 11 NRF_TIMER2           Non-SecureOK
2021-09-04T19:59:39.469Z DEBUG modem << 12 NRF_SAADC            Non-SecureOK
2021-09-04T19:59:39.471Z DEBUG modem << 13 NRF_PWM0             Non-SecureOK
2021-09-04T19:59:39.473Z DEBUG modem << 14 NRF_PWM1             Non-SecureOK
2021-09-04T19:59:39.475Z DEBUG modem << 15 NRF_PWM2             Non-SecureOK
2021-09-04T19:59:39.476Z DEBUG modem << 16 NRF_PWM3             Non-SecureOK
2021-09-04T19:59:39.478Z DEBUG modem << 17 NRF_WDT              Non-SecureOK
2021-09-04T19:59:39.480Z DEBUG modem << 18 NRF_IPC              Non-SecureOK
2021-09-04T19:59:39.481Z DEBUG modem << 19 NRF_VMC              Non-SecureOK
2021-09-04T19:59:39.483Z DEBUG modem << 20 NRF_FPU              Non-SecureOK
2021-09-04T19:59:39.487Z DEBUG modem << 21 NRF_EGU1             Non-SecureOK
2021-09-04T19:59:39.489Z DEBUG modem << 22 NRF_EGU2             Non-SecureOK
2021-09-04T19:59:39.491Z DEBUG modem << 23 NRF_DPPIC            Non-SecureOK
2021-09-04T19:59:39.493Z DEBUG modem << 24 NRF_REGULATORS       Non-SecureOK
2021-09-04T19:59:39.494Z DEBUG modem << 25 NRF_PDM              Non-SecureOK
2021-09-04T19:59:39.496Z DEBUG modem << 26 NRF_I2S              Non-SecureOK
2021-09-04T19:59:39.498Z DEBUG modem << 27 NRF_GPIOTE1          Non-SecureOK
2021-09-04T19:59:39.500Z DEBUG modem << SPM: NS image at 0x10000
2021-09-04T19:59:39.503Z DEBUG modem << SPM: NS MSP at 0x20019fb8
2021-09-04T19:59:39.504Z DEBUG modem << SPM: NS reset vector at 0x12b65
2021-09-04T19:59:39.506Z DEBUG modem << SPM: prepare to jump to Non-Secure image.
2021-09-04T19:59:39.508Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-04T19:59:39.510Z DEBUG modem << HTTPS client sample started
2021-09-04T19:59:39.703Z DEBUG modem << Provisioning certificate
2021-09-04T20:09:50.981Z DEBUG modem << Waiting for network.. OK
2021-09-04T20:09:51.195Z DEBUG modem << Connecting to example.com
2021-09-04T20:09:51.360Z DEBUG modem << connect() failed, err: 116
2021-09-04T20:32:18.128Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-04T20:32:18.148Z DEBUG modem << Flash regionsDomainPermissions
2021-09-04T20:32:18.153Z DEBUG modem << 00 01 0x00000 0x10000 Securerwxl
2021-09-04T20:32:18.162Z DEBUG modem << 02 31 0x10000 0x100000 Non-Securerwxl
2021-09-04T20:32:18.179Z DEBUG modem << Non-secure callable region 0 placed in flash region 1 with size 32.
2021-09-04T20:32:18.197Z DEBUG modem << SRAM regionDomainPermissions
2021-09-04T20:32:18.201Z DEBUG modem << 00 07 0x00000 0x10000 Securerwxl
2021-09-04T20:32:18.206Z DEBUG modem << 08 31 0x10000 0x40000 Non-Securerwxl
2021-09-04T20:32:18.208Z DEBUG modem << PeripheralDomainStatus
2021-09-04T20:32:18.211Z DEBUG modem << 00 NRF_P0               Non-SecureOK
2021-09-04T20:32:18.225Z DEBUG modem << 01 NRF_CLOCK            Non-SecureOK
2021-09-04T20:32:18.228Z DEBUG modem << 02 NRF_RTC0             Non-SecureOK
2021-09-04T20:32:18.230Z DEBUG modem << 03 NRF_RTC1             Non-SecureOK
2021-09-04T20:32:18.232Z DEBUG modem << 04 NRF_NVMC             Non-SecureOK
2021-09-04T20:32:18.234Z DEBUG modem << 05 NRF_UARTE1           Non-SecureOK
2021-09-04T20:32:18.236Z DEBUG modem << 06 NRF_UARTE2           SecureSKIP
2021-09-04T20:32:18.238Z DEBUG modem << 07 NRF_TWIM2            Non-SecureOK
2021-09-04T20:32:18.241Z DEBUG modem << 08 NRF_SPIM3            Non-SecureOK
2021-09-04T20:32:18.243Z DEBUG modem << 09 NRF_TIMER0           Non-SecureOK
2021-09-04T20:32:18.265Z DEBUG modem << 10 NRF_TIMER1           Non-SecureOK
2021-09-04T20:32:18.267Z DEBUG modem << 11 NRF_TIMER2           Non-SecureOK
2021-09-04T20:32:18.269Z DEBUG modem << 12 NRF_SAADC            Non-SecureOK
2021-09-04T20:32:18.270Z DEBUG modem << 13 NRF_PWM0             Non-SecureOK
2021-09-04T20:32:18.272Z DEBUG modem << 14 NRF_PWM1             Non-SecureOK
2021-09-04T20:32:18.273Z DEBUG modem << 15 NRF_PWM2             Non-SecureOK
2021-09-04T20:32:18.274Z DEBUG modem << 16 NRF_PWM3             Non-SecureOK
2021-09-04T20:32:18.275Z DEBUG modem << 17 NRF_WDT              Non-SecureOK
2021-09-04T20:32:18.288Z DEBUG modem << 18 NRF_IPC              Non-SecureOK
2021-09-04T20:32:18.291Z DEBUG modem << 19 NRF_VMC              Non-SecureOK
2021-09-04T20:32:18.292Z DEBUG modem << 20 NRF_FPU              Non-SecureOK
2021-09-04T20:32:18.293Z DEBUG modem << 21 NRF_EGU1             Non-SecureOK
2021-09-04T20:32:18.294Z DEBUG modem << 22 NRF_EGU2             Non-SecureOK
2021-09-04T20:32:18.297Z DEBUG modem << 23 NRF_DPPIC            Non-SecureOK
2021-09-04T20:32:18.301Z DEBUG modem << 24 NRF_REGULATORS       Non-SecureOK
2021-09-04T20:32:18.311Z DEBUG modem << 25 NRF_PDM              Non-SecureOK
2021-09-04T20:32:18.313Z DEBUG modem << 26 NRF_I2S              Non-SecureOK
2021-09-04T20:32:18.314Z DEBUG modem << 27 NRF_GPIOTE1          Non-SecureOK
2021-09-04T20:32:18.316Z DEBUG modem << SPM: NS image at 0x10000
2021-09-04T20:32:18.319Z DEBUG modem << SPM: NS MSP at 0x20019fb8
2021-09-04T20:32:18.321Z DEBUG modem << SPM: NS reset vector at 0x12b65
2021-09-04T20:32:18.323Z DEBUG modem << SPM: prepare to jump to Non-Secure image.
2021-09-04T20:32:18.332Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-04T20:32:18.334Z DEBUG modem << HTTPS client sample started
2021-09-04T20:32:18.608Z DEBUG modem << Provisioning certificate
2021-09-04T20:44:24.909Z DEBUG modem << Waiting for network.. OK
2021-09-04T20:44:25.195Z DEBUG modem << Connecting to example.com
2021-09-04T20:44:25.389Z DEBUG modem << connect() failed, err: 116

Parents
  • 0

    Hi Markus,

    To be sure, I just downloaded extra 200 MB of data to my SIM card, but still no improvement.

    As I am using NB-IoT and not the LTE-M, I have added the following line to the prj.conf file for this sample:

    CONFIG_LTE_NETWORK_MODE_NBIOT=y

    I also changed the following line in this prj.conf file:

    CONFIG_LTE_AUTO_INIT_AND_CONNECT=n

    to: CONFIG_LTE_AUTO_INIT_AND_CONNECT=y

    but still no improvement.

    I attach the log file from the LTE Link Monitor dated 2021-09-06 that looks similar to the one that I attached o my previous correspondence.

    I also attach a copy of the prj.conf file for this sample with the changes/additions that I mentioned above.

    Fullscreen 2021-09-06 log file from LTE Link Monitor.txt Download 
    2021-09-06T13:28:44.653Z INFO Application data folder: C:\Users\Administrator\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2021-09-06T13:28:45.095Z DEBUG App pc-nrfconnect-linkmonitor v1.1.10 official
2021-09-06T13:28:45.096Z DEBUG App path: C:\Users\Administrator\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2021-09-06T13:28:45.096Z DEBUG nRFConnect 3.7.0, required by the app is (^3.6.0)
2021-09-06T13:28:45.097Z DEBUG nRFConnect path: C:\Users\Administrator\AppData\Local\Programs\nrfconnect\resources\app.asar
2021-09-06T13:28:45.097Z DEBUG HomeDir: C:\Users\Administrator
2021-09-06T13:28:45.098Z DEBUG TmpDir: C:\Users\ADMINI~1\AppData\Local\Temp
2021-09-06T13:28:45.323Z VERBOSE Could not fetch serial number for serial port at COM3
2021-09-06T13:28:50.349Z INFO Modem port is opened
2021-09-06T13:28:56.790Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:28:57.070Z DEBUG modem << Flash regionsDomainPermissions
2021-09-06T13:28:57.078Z DEBUG modem << 00 01 0x00000 0x10000 Securerwxl
2021-09-06T13:28:57.084Z DEBUG modem << 02 31 0x10000 0x100000 Non-Securerwxl
2021-09-06T13:28:57.089Z DEBUG modem << Non-secure callable region 0 placed in flash region 1 with size 32.
2021-09-06T13:28:57.092Z DEBUG modem << SRAM regionDomainPermissions
2021-09-06T13:28:57.096Z DEBUG modem << 00 07 0x00000 0x10000 Securerwxl
2021-09-06T13:28:57.100Z DEBUG modem << 08 31 0x10000 0x40000 Non-Securerwxl
2021-09-06T13:28:57.102Z DEBUG modem << PeripheralDomainStatus
2021-09-06T13:28:57.104Z DEBUG modem << 00 NRF_P0               Non-SecureOK
2021-09-06T13:28:57.106Z DEBUG modem << 01 NRF_CLOCK            Non-SecureOK
2021-09-06T13:28:57.109Z DEBUG modem << 02 NRF_RTC0             Non-SecureOK
2021-09-06T13:28:57.111Z DEBUG modem << 03 NRF_RTC1             Non-SecureOK
2021-09-06T13:28:57.113Z DEBUG modem << 04 NRF_NVMC             Non-SecureOK
2021-09-06T13:28:57.118Z DEBUG modem << 05 NRF_UARTE1           Non-SecureOK
2021-09-06T13:28:57.120Z DEBUG modem << 06 NRF_UARTE2           SecureSKIP
2021-09-06T13:28:57.122Z DEBUG modem << 07 NRF_TWIM2            Non-SecureOK
2021-09-06T13:28:57.124Z DEBUG modem << 08 NRF_SPIM3            Non-SecureOK
2021-09-06T13:28:57.126Z DEBUG modem << 09 NRF_TIMER0           Non-SecureOK
2021-09-06T13:28:57.128Z DEBUG modem << 10 NRF_TIMER1           Non-SecureOK
2021-09-06T13:28:57.132Z DEBUG modem << 11 NRF_TIMER2           Non-SecureOK
2021-09-06T13:28:57.134Z DEBUG modem << 12 NRF_SAADC            Non-SecureOK
2021-09-06T13:28:57.136Z DEBUG modem << 13 NRF_PWM0             Non-SecureOK
2021-09-06T13:28:57.140Z DEBUG modem << 14 NRF_PWM1             Non-SecureOK
2021-09-06T13:28:57.141Z DEBUG modem << 15 NRF_PWM2             Non-SecureOK
2021-09-06T13:28:57.143Z DEBUG modem << 16 NRF_PWM3             Non-SecureOK
2021-09-06T13:28:57.145Z DEBUG modem << 17 NRF_WDT              Non-SecureOK
2021-09-06T13:28:57.147Z DEBUG modem << 18 NRF_IPC              Non-SecureOK
2021-09-06T13:28:57.148Z DEBUG modem << 19 NRF_VMC              Non-SecureOK
2021-09-06T13:28:57.150Z DEBUG modem << 20 NRF_FPU              Non-SecureOK
2021-09-06T13:28:57.155Z DEBUG modem << 21 NRF_EGU1             Non-SecureOK
2021-09-06T13:28:57.157Z DEBUG modem << 22 NRF_EGU2             Non-SecureOK
2021-09-06T13:28:57.159Z DEBUG modem << 23 NRF_DPPIC            Non-SecureOK
2021-09-06T13:28:57.161Z DEBUG modem << 24 NRF_REGULATORS       Non-SecureOK
2021-09-06T13:28:57.163Z DEBUG modem << 25 NRF_PDM              Non-SecureOK
2021-09-06T13:28:57.164Z DEBUG modem << 26 NRF_I2S              Non-SecureOK
2021-09-06T13:28:57.166Z DEBUG modem << 27 NRF_GPIOTE1          Non-SecureOK
2021-09-06T13:28:57.168Z DEBUG modem << SPM: NS image at 0x10000
2021-09-06T13:28:57.171Z DEBUG modem << SPM: NS MSP at 0x20019fd8
2021-09-06T13:28:57.173Z DEBUG modem << SPM: NS reset vector at 0x12b65
2021-09-06T13:28:57.174Z DEBUG modem << SPM: prepare to jump to Non-Secure image.
2021-09-06T13:28:57.175Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:28:57.177Z DEBUG modem << HTTPS client sample started
2021-09-06T13:28:57.270Z DEBUG modem << Provisioning certificate
2021-09-06T13:29:00.806Z DEBUG modem << Waiting for network.. OK
2021-09-06T13:29:18.246Z DEBUG modem << Connecting to example.com
2021-09-06T13:29:18.411Z DEBUG modem << connect() failed, err: 116
2021-09-06T13:30:51.787Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:30:51.809Z DEBUG modem << Flash regionsDomainPermissions
2021-09-06T13:30:51.823Z DEBUG modem << 00 01 0x00000 0x10000 Securerwxl
2021-09-06T13:30:51.827Z DEBUG modem << 02 31 0x10000 0x100000 Non-Securerwxl
2021-09-06T13:30:51.831Z DEBUG modem << Non-secure callable region 0 placed in flash region 1 with size 32.
2021-09-06T13:30:51.852Z DEBUG modem << SRAM regionDomainPermissions
2021-09-06T13:30:51.856Z DEBUG modem << 00 07 0x00000 0x10000 Securerwxl
2021-09-06T13:30:51.862Z DEBUG modem << 08 31 0x10000 0x40000 Non-Securerwxl
2021-09-06T13:30:51.863Z DEBUG modem << PeripheralDomainStatus
2021-09-06T13:30:51.865Z DEBUG modem << 00 NRF_P0               Non-SecureOK
2021-09-06T13:30:51.873Z DEBUG modem << 01 NRF_CLOCK            Non-SecureOK
2021-09-06T13:30:51.876Z DEBUG modem << 02 NRF_RTC0             Non-SecureOK
2021-09-06T13:30:51.880Z DEBUG modem << 03 NRF_RTC1             Non-SecureOK
2021-09-06T13:30:51.883Z DEBUG modem << 04 NRF_NVMC             Non-SecureOK
2021-09-06T13:30:51.891Z DEBUG modem << 05 NRF_UARTE1           Non-SecureOK
2021-09-06T13:30:51.895Z DEBUG modem << 06 NRF_UARTE2           SecureSKIP
2021-09-06T13:30:51.896Z DEBUG modem << 07 NRF_TWIM2            Non-SecureOK
2021-09-06T13:30:51.906Z DEBUG modem << 08 NRF_SPIM3            Non-SecureOK
2021-09-06T13:30:51.909Z DEBUG modem << 09 NRF_TIMER0           Non-SecureOK
2021-09-06T13:30:51.912Z DEBUG modem << 10 NRF_TIMER1           Non-SecureOK
2021-09-06T13:30:51.913Z DEBUG modem << 11 NRF_TIMER2           Non-SecureOK
2021-09-06T13:30:51.915Z DEBUG modem << 12 NRF_SAADC            Non-SecureOK
2021-09-06T13:30:51.916Z DEBUG modem << 13 NRF_PWM0             Non-SecureOK
2021-09-06T13:30:51.918Z DEBUG modem << 14 NRF_PWM1             Non-SecureOK
2021-09-06T13:30:51.920Z DEBUG modem << 15 NRF_PWM2             Non-SecureOK
2021-09-06T13:30:51.929Z DEBUG modem << 16 NRF_PWM3             Non-SecureOK
2021-09-06T13:30:51.932Z DEBUG modem << 17 NRF_WDT              Non-SecureOK
2021-09-06T13:30:51.934Z DEBUG modem << 18 NRF_IPC              Non-SecureOK
2021-09-06T13:30:51.936Z DEBUG modem << 19 NRF_VMC              Non-SecureOK
2021-09-06T13:30:51.939Z DEBUG modem << 20 NRF_FPU              Non-SecureOK
2021-09-06T13:30:51.941Z DEBUG modem << 21 NRF_EGU1             Non-SecureOK
2021-09-06T13:30:51.950Z DEBUG modem << 22 NRF_EGU2             Non-SecureOK
2021-09-06T13:30:51.954Z DEBUG modem << 23 NRF_DPPIC            Non-SecureOK
2021-09-06T13:30:51.957Z DEBUG modem << 24 NRF_REGULATORS       Non-SecureOK
2021-09-06T13:30:51.958Z DEBUG modem << 25 NRF_PDM              Non-SecureOK
2021-09-06T13:30:51.967Z DEBUG modem << 26 NRF_I2S              Non-SecureOK
2021-09-06T13:30:51.970Z DEBUG modem << 27 NRF_GPIOTE1          Non-SecureOK
2021-09-06T13:30:51.971Z DEBUG modem << SPM: NS image at 0x10000
2021-09-06T13:30:51.974Z DEBUG modem << SPM: NS MSP at 0x20019fd8
2021-09-06T13:30:51.975Z DEBUG modem << SPM: NS reset vector at 0x12b65
2021-09-06T13:30:51.977Z DEBUG modem << SPM: prepare to jump to Non-Secure image.
2021-09-06T13:30:51.979Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:30:51.982Z DEBUG modem << HTTPS client sample started
2021-09-06T13:30:52.360Z DEBUG modem << Provisioning certificate
2021-09-06T13:31:03.427Z DEBUG modem << Waiting for network.. OK
2021-09-06T13:31:03.714Z DEBUG modem << Connecting to example.com
2021-09-06T13:31:03.879Z DEBUG modem << connect() failed, err: 116

    Fullscreen prj-conf file for sample https_client.txt Download 
    CONFIG_NRF_MODEM_LIB=y
CONFIG_NRF_MODEM_LIB_SYS_INIT=n

CONFIG_NETWORKING=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y
CONFIG_NET_NATIVE=n

CONFIG_HEAP_MEM_POOL_SIZE=4096
CONFIG_MAIN_STACK_SIZE=4096

CONFIG_MODEM_KEY_MGMT=y
CONFIG_LTE_LINK_CONTROL=y
CONFIG_LTE_AUTO_INIT_AND_CONNECT=y
CONFIG_LTE_NETWORK_MODE_NBIOT=y

CONFIG_NEWLIB_LIBC=y

    Regards,

    Jack

Reply
  • 0

    Hi Markus,

    To be sure, I just downloaded extra 200 MB of data to my SIM card, but still no improvement.

    As I am using NB-IoT and not the LTE-M, I have added the following line to the prj.conf file for this sample:

    CONFIG_LTE_NETWORK_MODE_NBIOT=y

    I also changed the following line in this prj.conf file:

    CONFIG_LTE_AUTO_INIT_AND_CONNECT=n

    to: CONFIG_LTE_AUTO_INIT_AND_CONNECT=y

    but still no improvement.

    I attach the log file from the LTE Link Monitor dated 2021-09-06 that looks similar to the one that I attached o my previous correspondence.

    I also attach a copy of the prj.conf file for this sample with the changes/additions that I mentioned above.

    Fullscreen 2021-09-06 log file from LTE Link Monitor.txt Download 
    2021-09-06T13:28:44.653Z INFO Application data folder: C:\Users\Administrator\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2021-09-06T13:28:45.095Z DEBUG App pc-nrfconnect-linkmonitor v1.1.10 official
2021-09-06T13:28:45.096Z DEBUG App path: C:\Users\Administrator\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2021-09-06T13:28:45.096Z DEBUG nRFConnect 3.7.0, required by the app is (^3.6.0)
2021-09-06T13:28:45.097Z DEBUG nRFConnect path: C:\Users\Administrator\AppData\Local\Programs\nrfconnect\resources\app.asar
2021-09-06T13:28:45.097Z DEBUG HomeDir: C:\Users\Administrator
2021-09-06T13:28:45.098Z DEBUG TmpDir: C:\Users\ADMINI~1\AppData\Local\Temp
2021-09-06T13:28:45.323Z VERBOSE Could not fetch serial number for serial port at COM3
2021-09-06T13:28:50.349Z INFO Modem port is opened
2021-09-06T13:28:56.790Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:28:57.070Z DEBUG modem << Flash regionsDomainPermissions
2021-09-06T13:28:57.078Z DEBUG modem << 00 01 0x00000 0x10000 Securerwxl
2021-09-06T13:28:57.084Z DEBUG modem << 02 31 0x10000 0x100000 Non-Securerwxl
2021-09-06T13:28:57.089Z DEBUG modem << Non-secure callable region 0 placed in flash region 1 with size 32.
2021-09-06T13:28:57.092Z DEBUG modem << SRAM regionDomainPermissions
2021-09-06T13:28:57.096Z DEBUG modem << 00 07 0x00000 0x10000 Securerwxl
2021-09-06T13:28:57.100Z DEBUG modem << 08 31 0x10000 0x40000 Non-Securerwxl
2021-09-06T13:28:57.102Z DEBUG modem << PeripheralDomainStatus
2021-09-06T13:28:57.104Z DEBUG modem << 00 NRF_P0               Non-SecureOK
2021-09-06T13:28:57.106Z DEBUG modem << 01 NRF_CLOCK            Non-SecureOK
2021-09-06T13:28:57.109Z DEBUG modem << 02 NRF_RTC0             Non-SecureOK
2021-09-06T13:28:57.111Z DEBUG modem << 03 NRF_RTC1             Non-SecureOK
2021-09-06T13:28:57.113Z DEBUG modem << 04 NRF_NVMC             Non-SecureOK
2021-09-06T13:28:57.118Z DEBUG modem << 05 NRF_UARTE1           Non-SecureOK
2021-09-06T13:28:57.120Z DEBUG modem << 06 NRF_UARTE2           SecureSKIP
2021-09-06T13:28:57.122Z DEBUG modem << 07 NRF_TWIM2            Non-SecureOK
2021-09-06T13:28:57.124Z DEBUG modem << 08 NRF_SPIM3            Non-SecureOK
2021-09-06T13:28:57.126Z DEBUG modem << 09 NRF_TIMER0           Non-SecureOK
2021-09-06T13:28:57.128Z DEBUG modem << 10 NRF_TIMER1           Non-SecureOK
2021-09-06T13:28:57.132Z DEBUG modem << 11 NRF_TIMER2           Non-SecureOK
2021-09-06T13:28:57.134Z DEBUG modem << 12 NRF_SAADC            Non-SecureOK
2021-09-06T13:28:57.136Z DEBUG modem << 13 NRF_PWM0             Non-SecureOK
2021-09-06T13:28:57.140Z DEBUG modem << 14 NRF_PWM1             Non-SecureOK
2021-09-06T13:28:57.141Z DEBUG modem << 15 NRF_PWM2             Non-SecureOK
2021-09-06T13:28:57.143Z DEBUG modem << 16 NRF_PWM3             Non-SecureOK
2021-09-06T13:28:57.145Z DEBUG modem << 17 NRF_WDT              Non-SecureOK
2021-09-06T13:28:57.147Z DEBUG modem << 18 NRF_IPC              Non-SecureOK
2021-09-06T13:28:57.148Z DEBUG modem << 19 NRF_VMC              Non-SecureOK
2021-09-06T13:28:57.150Z DEBUG modem << 20 NRF_FPU              Non-SecureOK
2021-09-06T13:28:57.155Z DEBUG modem << 21 NRF_EGU1             Non-SecureOK
2021-09-06T13:28:57.157Z DEBUG modem << 22 NRF_EGU2             Non-SecureOK
2021-09-06T13:28:57.159Z DEBUG modem << 23 NRF_DPPIC            Non-SecureOK
2021-09-06T13:28:57.161Z DEBUG modem << 24 NRF_REGULATORS       Non-SecureOK
2021-09-06T13:28:57.163Z DEBUG modem << 25 NRF_PDM              Non-SecureOK
2021-09-06T13:28:57.164Z DEBUG modem << 26 NRF_I2S              Non-SecureOK
2021-09-06T13:28:57.166Z DEBUG modem << 27 NRF_GPIOTE1          Non-SecureOK
2021-09-06T13:28:57.168Z DEBUG modem << SPM: NS image at 0x10000
2021-09-06T13:28:57.171Z DEBUG modem << SPM: NS MSP at 0x20019fd8
2021-09-06T13:28:57.173Z DEBUG modem << SPM: NS reset vector at 0x12b65
2021-09-06T13:28:57.174Z DEBUG modem << SPM: prepare to jump to Non-Secure image.
2021-09-06T13:28:57.175Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:28:57.177Z DEBUG modem << HTTPS client sample started
2021-09-06T13:28:57.270Z DEBUG modem << Provisioning certificate
2021-09-06T13:29:00.806Z DEBUG modem << Waiting for network.. OK
2021-09-06T13:29:18.246Z DEBUG modem << Connecting to example.com
2021-09-06T13:29:18.411Z DEBUG modem << connect() failed, err: 116
2021-09-06T13:30:51.787Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:30:51.809Z DEBUG modem << Flash regionsDomainPermissions
2021-09-06T13:30:51.823Z DEBUG modem << 00 01 0x00000 0x10000 Securerwxl
2021-09-06T13:30:51.827Z DEBUG modem << 02 31 0x10000 0x100000 Non-Securerwxl
2021-09-06T13:30:51.831Z DEBUG modem << Non-secure callable region 0 placed in flash region 1 with size 32.
2021-09-06T13:30:51.852Z DEBUG modem << SRAM regionDomainPermissions
2021-09-06T13:30:51.856Z DEBUG modem << 00 07 0x00000 0x10000 Securerwxl
2021-09-06T13:30:51.862Z DEBUG modem << 08 31 0x10000 0x40000 Non-Securerwxl
2021-09-06T13:30:51.863Z DEBUG modem << PeripheralDomainStatus
2021-09-06T13:30:51.865Z DEBUG modem << 00 NRF_P0               Non-SecureOK
2021-09-06T13:30:51.873Z DEBUG modem << 01 NRF_CLOCK            Non-SecureOK
2021-09-06T13:30:51.876Z DEBUG modem << 02 NRF_RTC0             Non-SecureOK
2021-09-06T13:30:51.880Z DEBUG modem << 03 NRF_RTC1             Non-SecureOK
2021-09-06T13:30:51.883Z DEBUG modem << 04 NRF_NVMC             Non-SecureOK
2021-09-06T13:30:51.891Z DEBUG modem << 05 NRF_UARTE1           Non-SecureOK
2021-09-06T13:30:51.895Z DEBUG modem << 06 NRF_UARTE2           SecureSKIP
2021-09-06T13:30:51.896Z DEBUG modem << 07 NRF_TWIM2            Non-SecureOK
2021-09-06T13:30:51.906Z DEBUG modem << 08 NRF_SPIM3            Non-SecureOK
2021-09-06T13:30:51.909Z DEBUG modem << 09 NRF_TIMER0           Non-SecureOK
2021-09-06T13:30:51.912Z DEBUG modem << 10 NRF_TIMER1           Non-SecureOK
2021-09-06T13:30:51.913Z DEBUG modem << 11 NRF_TIMER2           Non-SecureOK
2021-09-06T13:30:51.915Z DEBUG modem << 12 NRF_SAADC            Non-SecureOK
2021-09-06T13:30:51.916Z DEBUG modem << 13 NRF_PWM0             Non-SecureOK
2021-09-06T13:30:51.918Z DEBUG modem << 14 NRF_PWM1             Non-SecureOK
2021-09-06T13:30:51.920Z DEBUG modem << 15 NRF_PWM2             Non-SecureOK
2021-09-06T13:30:51.929Z DEBUG modem << 16 NRF_PWM3             Non-SecureOK
2021-09-06T13:30:51.932Z DEBUG modem << 17 NRF_WDT              Non-SecureOK
2021-09-06T13:30:51.934Z DEBUG modem << 18 NRF_IPC              Non-SecureOK
2021-09-06T13:30:51.936Z DEBUG modem << 19 NRF_VMC              Non-SecureOK
2021-09-06T13:30:51.939Z DEBUG modem << 20 NRF_FPU              Non-SecureOK
2021-09-06T13:30:51.941Z DEBUG modem << 21 NRF_EGU1             Non-SecureOK
2021-09-06T13:30:51.950Z DEBUG modem << 22 NRF_EGU2             Non-SecureOK
2021-09-06T13:30:51.954Z DEBUG modem << 23 NRF_DPPIC            Non-SecureOK
2021-09-06T13:30:51.957Z DEBUG modem << 24 NRF_REGULATORS       Non-SecureOK
2021-09-06T13:30:51.958Z DEBUG modem << 25 NRF_PDM              Non-SecureOK
2021-09-06T13:30:51.967Z DEBUG modem << 26 NRF_I2S              Non-SecureOK
2021-09-06T13:30:51.970Z DEBUG modem << 27 NRF_GPIOTE1          Non-SecureOK
2021-09-06T13:30:51.971Z DEBUG modem << SPM: NS image at 0x10000
2021-09-06T13:30:51.974Z DEBUG modem << SPM: NS MSP at 0x20019fd8
2021-09-06T13:30:51.975Z DEBUG modem << SPM: NS reset vector at 0x12b65
2021-09-06T13:30:51.977Z DEBUG modem << SPM: prepare to jump to Non-Secure image.
2021-09-06T13:30:51.979Z DEBUG modem << *** Booting Zephyr OS build v2.6.0-rc1-ncs1  ***
2021-09-06T13:30:51.982Z DEBUG modem << HTTPS client sample started
2021-09-06T13:30:52.360Z DEBUG modem << Provisioning certificate
2021-09-06T13:31:03.427Z DEBUG modem << Waiting for network.. OK
2021-09-06T13:31:03.714Z DEBUG modem << Connecting to example.com
2021-09-06T13:31:03.879Z DEBUG modem << connect() failed, err: 116

    Fullscreen prj-conf file for sample https_client.txt Download 
    CONFIG_NRF_MODEM_LIB=y
CONFIG_NRF_MODEM_LIB_SYS_INIT=n

CONFIG_NETWORKING=y
CONFIG_NET_SOCKETS=y
CONFIG_NET_SOCKETS_POSIX_NAMES=y
CONFIG_NET_NATIVE=n

CONFIG_HEAP_MEM_POOL_SIZE=4096
CONFIG_MAIN_STACK_SIZE=4096

CONFIG_MODEM_KEY_MGMT=y
CONFIG_LTE_LINK_CONTROL=y
CONFIG_LTE_AUTO_INIT_AND_CONNECT=y
CONFIG_LTE_NETWORK_MODE_NBIOT=y

CONFIG_NEWLIB_LIBC=y

    Regards,

    Jack

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