USB LTE Connection Fails continuously on orin Nx, But on my laptop works properly

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

Hi NvidiaCommunity,
I’m working with a Jetson Orin NX running:

  • JetPack: 6.2

  • L4T: 35.4.3

  • Kernel: 5.15.148

I’m trying to use a NL-SW-LTE-TC4WWG LTE module (connected via USB).

  • On my linux laptop, this LTE modem works fine: it enumerates as a USB device and connects to the internet with no issues.

  • On the Orin NX, the device also enumerates successfully (same 1bc7/1033 as on my laptop), and shows up under nmcli as a GSM device (e.g. ttyUSB1).

  • However, it fails to connect to the internet on the Orin NX.

Example output from nmcli d on the Orin NX:

DEVICE            TYPE      STATE                   CONNECTION 
l4tbr0            bridge    connected (externally)  l4tbr0     
ttyUSB1           gsm       disconnected            --         
enP8p1s0          ethernet  unavailable             --         
wlP1p1s0          wifi      unavailable             --

It looks like NetworkManager sees the modem but cannot establish a data connection.

Dmesg:

[ 1901.165821] option 1-2.3:1.0: GSM modem (1-port) converter detected
[ 1901.166034] usb 1-2.3: GSM modem (1-port) converter now attached to ttyUSB0
[ 1901.166248] option 1-2.3:1.1: GSM modem (1-port) converter detected
[ 1901.166408] usb 1-2.3: GSM modem (1-port) converter now attached to ttyUSB1
[ 1901.166798] option 1-2.3:1.2: GSM modem (1-port) converter detected
[ 1901.166916] usb 1-2.3: GSM modem (1-port) converter now attached to ttyUSB2
[ 1901.171070] cdc_ether 1-2.3:1.3 wwan0: register ‘cdc_ether’ at usb-3610000.usb-2.3, Mobile Broadband Network Device, 00:a0:c6:08:c8:80
[ 1901.229087] cdc_ether 1-2.3:1.3 wwx00a0c608c880: renamed from wwan0

(THis is the dmesg of the Orin nx), I also check the dmesg of my linux laptop it also loads the cdc_ether as the orin nx. I dont know why its is not connected to the network in the orin nx. I am using the Vodofone sim and the Nimbelink Cat4 LTE.

Request you to help me solve this issue,

Thanks,
Cibi

3

after enabling the below driver in the defconfig, Now the network connection works properly.

+# LTE driver enable
+CONFIG_USB_PRINTER=m
+CONFIG_USB_WDM=m
+CONFIG_USB_TMC=m
+CONFIG_USB_NET_QMI_WWAN=m
+CONFIG_USB_SERIAL_WWAN=m
+CONFIG_USB_NET_CDC_MBIM=m
+CONFIG_USB_NET_CDCETHER=m
+CONFIG_USB_NET_CDC_EEM=m
+
+CONFIG_WWAN=m
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+# CONFIG_PPP_FILTER is not set
+CONFIG_PPP_MPPE=m
+# CONFIG_PPP_MULTILINK is not set
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m

Thanks,
Cibi P

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