Fresh installation on Bookworm fails to connect to cellular

ECaricato · November 24, 2024, 6:26pm

Hello Sixfab-Team,

I am having issues with a fresh installation on a Raspberry Pi 4 with Bookworm installed. I have set up everything as I usually do, set up my code and everything and everything else works fine. But after installation of the hat using the installation code, the wwan0 interface fails to get a connection to cellular network.
I have already tried troubleshooting a bit myself but didnt find any issues.

Environment:

Raspberry Pi Model 4
OS: Raspbian 12 Bookworm
HAT: 3G/4G LTE Base Hat
Antenna: Default Antenna delivered from Sixfab
Mini PCIe Module: Telit LE910C4-EU
SIM: Sixfab SIM
Connection Type: Sixfab CORE

Service or Script Logs:
/home/sixfab/.core/logs/cm-log:

2024-11-24 19:07:55,464 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:07:55,779 --> cm.py              ERROR    check_network() -> ('Network not registered: ', ('\n\n+CREG: 0,0\n\n\n\nOK\n\n\n', '', 0))
2024-11-24 19:08:00,879 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:08:01,188 --> cm.py              ERROR    check_network() -> ('Network not registered: ', ('\n\n+CREG: 0,0\n\n\n\nOK\n\n\n', '', 0))
2024-11-24 19:08:06,289 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:08:06,663 --> cm.py              ERROR    check_network() -> ('Network not registered: ', ('\n\n+CREG: 0,0\n\n\n\nOK\n\n\n', '', 0))
2024-11-24 19:08:11,763 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:08:12,120 --> cm.py              ERROR    check_network() -> ('Network not registered: ', ('\n\n+CREG: 0,0\n\n\n\nOK\n\n\n', '', 0))
2024-11-24 19:08:17,221 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:08:17,589 --> cm.py              ERROR    check_network() -> ('Network not registered: ', ('\n\n+CREG: 0,0\n\n\n\nOK\n\n\n', '', 0))
2024-11-24 19:08:22,689 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:08:23,064 --> cm.py              ERROR    check_network() -> ('Network not registered: ', ('\n\n+CREG: 0,0\n\n\n\nOK\n\n\n', '', 0))
2024-11-24 19:08:28,165 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:08:28,493 --> default.py         INFO     Network is registered
2024-11-24 19:08:34,288 --> monitor.py         INFO     Monitoring data updated with changes.
2024-11-24 19:08:34,290 --> default.py         INFO     Checking the ECM initialization...
2024-11-24 19:08:34,643 --> default.py         INFO     ECM Connection is initiating...
2024-11-24 19:08:37,774 --> default.py         INFO     ECM is initiated.
2024-11-24 19:08:47,981 --> cm.py              ERROR    check_internet() -> No internet!
2024-11-24 19:08:48,182 --> diagnostic.py      INFO     Diagnostic is working...
2024-11-24 19:08:49,477 --> default.py         INFO     Checking the network is ready...
2024-11-24 19:08:49,788 --> default.py         INFO     Network is registered
2024-11-24 19:08:50,735 --> diagnostic.py      INFO     Creating diagnostic report on --> /home/sixfab/.core/diagnostics/diagnostic.yaml
2024-11-24 19:08:50,936 --> default.py         INFO     Connection interface is reset...
2024-11-24 19:08:50,951 --> default.py         INFO     Interface wwan0 is down.
2024-11-24 19:08:55,969 --> default.py         INFO     Interface wwan0 is up.
2024-11-24 19:09:16,053 --> cm.py              ERROR    reset_connection_interface() -> Modem interface couln't be detected.
2024-11-24 19:09:18,177 --> default.py         INFO     Connection interface is reset...
2024-11-24 19:09:18,207 --> default.py         INFO     Interface wwan0 is down.
2024-11-24 19:09:23,228 --> default.py         INFO     Interface wwan0 is up.
2024-11-24 19:09:43,311 --> cm.py              ERROR    reset_connection_interface() -> Modem interface couln't be detected.
2024-11-24 19:09:45,349 --> default.py         INFO     Connection interface is reset...
2024-11-24 19:09:45,366 --> default.py         INFO     Interface wwan0 is down.
2024-11-24 19:09:50,397 --> default.py         INFO     Interface wwan0 is up.
2024-11-24 19:10:10,485 --> cm.py              ERROR    reset_connection_interface() -> Modem interface couln't be detected.
2024-11-24 19:10:11,616 --> default.py         INFO     USB interface is reset...
2024-11-24 19:10:12,976 --> cm.py              ERROR    check_internet() -> No internet!
2024-11-24 19:10:13,177 --> default.py         INFO     Modem is resetting softly...
2024-11-24 19:10:13,623 --> default.py         INFO     Modem is deregistered from network
2024-11-24 19:10:55,114 --> monitor.py         INFO     Monitoring data updated with changes.
2024-11-24 19:10:56,120 --> identify.py        INFO     Tyring to detect modem...
2024-11-24 19:10:58,239 --> identify.py        INFO     [?] System identifying...
2024-11-24 19:10:59,860 --> identify.py        WARNING  System setup has changed!
2024-11-24 19:11:03,861 --> default.py         INFO     Modem configuration started.
2024-11-24 19:11:04,180 --> default.py         INFO     Network auto-registering is enabling
2024-11-24 19:11:04,510 --> default.py         INFO     Modem network auto-registering is enabled
2024-11-24 19:11:24,836 --> default.py         INFO     APN is up-to-date.
2024-11-24 19:11:25,150 --> default.py         INFO     Modem mode for EPS is OK
2024-11-24 19:11:25,151 --> default.py         INFO     Checking the mode of modem...
2024-11-24 19:11:27,573 --> default.py         INFO     Checking the SIM is ready...

/home/sixfab/.core/agent-log:

2024-11-24 19:10:45,555 --> monitoring.py  DEBUG    [CONFIGURATOR] Configs folder not found, skip for now
2024-11-24 19:10:45,558 --> monitoring.py  DEBUG    Skipping data_monitoring, couldn't find any changes.
2024-11-24 19:10:45,562 --> monitoring.py  DEBUG    Skipping data_system, couldn't find any changes.
2024-11-24 19:10:45,564 --> monitoring.py  DEBUG    Skipping data_config, couldn't find any changes.
2024-11-24 19:10:45,565 --> monitoring.py  DEBUG    Skipping data_geolocation, couldn't find any changes.
2024-11-24 19:11:15,566 --> monitoring.py  DEBUG    [CONFIGURATOR] Configs folder not found, skip for now
2024-11-24 19:11:15,569 --> monitoring.py  DEBUG    Sending new data_monitoring : (0, 20), only_changed_values=True
2024-11-24 19:11:15,573 --> monitoring.py  DEBUG    Skipping data_system, couldn't find any changes.
2024-11-24 19:11:15,575 --> monitoring.py  DEBUG    Skipping data_config, couldn't find any changes.
2024-11-24 19:11:15,576 --> monitoring.py  DEBUG    Skipping data_geolocation, couldn't find any changes.
2024-11-24 19:11:15,706 --> monitoring.py  DEBUG    Updated last monitoring data
2024-11-24 19:11:45,577 --> monitoring.py  DEBUG    [CONFIGURATOR] Configs folder not found, skip for now
2024-11-24 19:11:45,580 --> monitoring.py  DEBUG    Skipping data_monitoring, couldn't find any changes.
2024-11-24 19:11:45,584 --> monitoring.py  DEBUG    Skipping data_system, couldn't find any changes.
2024-11-24 19:11:45,586 --> monitoring.py  DEBUG    Skipping data_config, couldn't find any changes.
2024-11-24 19:11:45,588 --> monitoring.py  DEBUG    Skipping data_geolocation, couldn't find any changes.
2024-11-24 19:12:15,588 --> monitoring.py  DEBUG    [CONFIGURATOR] Configs folder not found, skip for now
2024-11-24 19:12:15,591 --> monitoring.py  DEBUG    Skipping data_monitoring, couldn't find any changes.
2024-11-24 19:12:15,595 --> monitoring.py  DEBUG    Skipping data_system, couldn't find any changes.
2024-11-24 19:12:15,596 --> monitoring.py  DEBUG    Skipping data_config, couldn't find any changes.
2024-11-24 19:12:15,598 --> monitoring.py  DEBUG    Skipping data_geolocation, couldn't find any changes.

Output of commands:
cat /etc/os-release

PRETTY_NAME="Raspbian GNU/Linux 12 (bookworm)"
NAME="Raspbian GNU/Linux"
VERSION_ID="12"
VERSION="12 (bookworm)"
VERSION_CODENAME=bookworm
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

uname -a:

Linux raspberrypi 6.6.51+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.6.51-1+rpt3 (2024-10-08) aarch64 GNU/Linux

lsusb:

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 008: ID 1bc7:1206 Telit Wireless Solutions LE910C4-EU
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lsusb -t:

/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 1: Dev 9, If 0, Class=Vendor Specific Class, Driver=option, 480M
        |__ Port 1: Dev 9, If 1, Class=Vendor Specific Class, Driver=, 480M
        |__ Port 1: Dev 9, If 2, Class=Communications, Driver=cdc_ether, 480M
        |__ Port 1: Dev 9, If 3, Class=CDC Data, Driver=cdc_ether, 480M
        |__ Port 1: Dev 9, If 4, Class=Vendor Specific Class, Driver=option, 480M
        |__ Port 1: Dev 9, If 5, Class=Vendor Specific Class, Driver=option, 480M
        |__ Port 1: Dev 9, If 6, Class=Vendor Specific Class, Driver=option, 480M
        |__ Port 1: Dev 9, If 7, Class=Vendor Specific Class, Driver=option, 480M

usb-devices:


T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 1
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev=06.06
S:  Manufacturer=Linux 6.6.51+rpt-rpi-v8 xhci-hcd
S:  Product=xHCI Host Controller
S:  SerialNumber=0000:01:00.0
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=256ms

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 4
D:  Ver= 2.10 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2109 ProdID=3431 Rev=04.21
S:  Product=USB2.0 Hub
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   1 Ivl=256ms

T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#=  9 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1bc7 ProdID=1206 Rev=03.18
S:  Manufacturer=Android
S:  Product=LE910C4-EU
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 8 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:  If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:  If#= 2 Alt= 0 #EPs= 1 Cls=02(commc) Sub=06 Prot=00 Driver=cdc_ether
E:  Ad=84(I) Atr=03(Int.) MxPS=  16 Ivl=32ms
I:  If#= 3 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:  If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=86(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=88(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 6 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=8a(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
I:  If#= 7 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=8b(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=8c(I) Atr=03(Int.) MxPS=  10 Ivl=32ms

T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=5000 MxCh= 4
D:  Ver= 3.00 Cls=09(hub  ) Sub=00 Prot=03 MxPS= 9 #Cfgs=  1
P:  Vendor=1d6b ProdID=0003 Rev=06.06
S:  Manufacturer=Linux 6.6.51+rpt-rpi-v8 xhci-hcd
S:  Product=xHCI Host Controller
S:  SerialNumber=0000:01:00.0
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=256ms

dmesg | grep tty:

 1334.967160] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
[ 1334.972961] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
[ 1334.973329] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2
[ 1334.973703] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB3
[ 1334.974055] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB4
[ 1541.172187] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 1541.232780] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 1541.233101] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 1541.233361] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 1541.233654] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 1541.426990] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
[ 1541.437996] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
[ 1541.440897] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2
[ 1541.442736] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB3
[ 1541.444295] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB4
[ 1551.369550] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 1551.394943] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 1551.395236] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 1551.395524] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 1551.395773] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 1565.038774] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
[ 1565.045987] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
[ 1565.046714] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2
[ 1565.047504] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB3
[ 1565.048498] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB4

ls -l /sys/bus/usb-serial/devices:

lrwxrwxrwx 1 root root 0 Nov 24 19:16 ttyUSB0 -> ../../../devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.1/1-1.1:1.0/ttyUSB0
lrwxrwxrwx 1 root root 0 Nov 24 19:16 ttyUSB1 -> ../../../devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.1/1-1.1:1.4/ttyUSB1
lrwxrwxrwx 1 root root 0 Nov 24 19:16 ttyUSB2 -> ../../../devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.1/1-1.1:1.5/ttyUSB2
lrwxrwxrwx 1 root root 0 Nov 24 19:16 ttyUSB3 -> ../../../devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.1/1-1.1:1.6/ttyUSB3
lrwxrwxrwx 1 root root 0 Nov 24 19:16 ttyUSB4 -> ../../../devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.1/1-1.1:1.7/ttyUSB4

ls -l /dev/serial/by-id:

lrwxrwxrwx 1 root root 13 Nov 24 19:14 usb-Android_LE910C4-EU_0123456789ABCDEF-if00-port0 -> ../../ttyUSB0
lrwxrwxrwx 1 root root 13 Nov 24 19:14 usb-Android_LE910C4-EU_0123456789ABCDEF-if04-port0 -> ../../ttyUSB1
lrwxrwxrwx 1 root root 13 Nov 24 19:14 usb-Android_LE910C4-EU_0123456789ABCDEF-if05-port0 -> ../../ttyUSB2
lrwxrwxrwx 1 root root 13 Nov 24 19:14 usb-Android_LE910C4-EU_0123456789ABCDEF-if06-port0 -> ../../ttyUSB3
lrwxrwxrwx 1 root root 13 Nov 24 19:14 usb-Android_LE910C4-EU_0123456789ABCDEF-if07-port0 -> ../../ttyUSB4

AT Commands:

(pitomat) root@raspberrypi:/home/pi# atcom AT
AT
OK

(pitomat) root@raspberrypi:/home/pi# atcom ATI

332

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CGMR

M0F.670010

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CGM

ERROR

(pitomat) root@raspberrypi:/home/pi# atcom AT+CPIN?

+CPIN: READY

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CPAS

+CPAS: 0

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CFUN?

+CFUN: 1

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+COPS?

+COPS: 0

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT#USBCFG?

#USBCFG: 4

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT#BND?

#BND: 0,15,80800C5

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CREG?

+CREG: 0,0

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CGDCONT?

+CGDCONT: 1,"IPV4V6","super","",0,0,0,0
+CGDCONT: 2,"IPV4V6","ims","",0,0,0,0
+CGDCONT: 3,"IPV4V6","sos","",0,0,0,1

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CSQ

+CSQ: 99,99

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+CGATT?

+CGATT: 0

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT+GMM

LE910C4-EU

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT#SWPKGV

25.21.670-P0F.671803
M0F.670010
P0F.671803
A0F.670010

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT#FWSWITCH?

ERROR

(pitomat) root@raspberrypi:/home/pi# atcom AT+CGREG?

+CGREG: 0,5

OK

(pitomat) root@raspberrypi:/home/pi# atcom AT#CGPADDR=

#CGPADDR: 1,"100.73.232.102"
#CGPADDR: 2,""
#CGPADDR: 3,""

OK

Thanks in advance for your support.

ensar · November 25, 2024, 1:27pm

Hi,

Thank you for providing detailed logs and additional information.

It is strongly recommended to use this module with the 64-bit Raspberry Pi OS based on Debian Bookworm, version released on March 15, 2024.

whitney.joel.b · July 28, 2025, 12:09pm

Hey @ensar, I appear to be having same issue as user above, however reformatting with the version referenced above does not solve my issue. I had previously been using my “Raspberry Pi 4G/LTE Cellular Modem Kit - Telit LE910C4-NF” for 2 years without issues until updating the OS.

The CORE Device Dashboard shows device online, except no cellular connection even though it shows it’s connected to AT&T as the roaming provider. It appears like my wwan0 interface is not getting setup as expected even though I followed the instructions here.

If I run ifconfig it will sometimes show the wwan0 interface, sometimes not. When it does show it, it does not have an ip

wwan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::481f:59ff:feb7:6b50  prefixlen 64  scopeid 0x20<link>
        ether 4a:1f:59:b7:6b:50  txqueuelen 1000  (Ethernet)
        RX packets 2  bytes 104 (104.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 63  bytes 7970 (7.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

whitney.joel.b · July 31, 2025, 1:44pm

Update: I ended up reformatting again with March 15, 2024 and then running installation code for CORE. Then my device started working again and showed the wwan0 interface in the dashboard as well as connected to cellular.

Not sure what happened the first time, but now I can try Setting up a Raspberry Pi as an LTE Hotspot again

saeed · July 31, 2025, 1:57pm

Hello @whitney.joel.b

Please try the official documentation for HOTSPOT as the Raspberry Pi OS now comes with NetworkManager.

For issues please consider opening a new post.

whitney.joel.b · July 31, 2025, 4:15pm

Thanks @saeed, I was just about to respond that I haven’t been able to get Setting up a Raspberry Pi as an LTE Hotspot to work for me. I am able to create the bridged interface, however any device that tries to connect to it is unable to get an ip address. I will reformat, setup celluar, and try the official documentation for HOTSPOT now. Thanks!