We are facing issue with EC25 module while establishing GPRS connection.
We are using the Network Manager tool for establishing the connection. We can see the SIM detailed information in the modem manager and Sim is also present
We are able to enable the module by using “mmcli -m 0 -e”
Method we are following to establishing the connection
1.nmcli connection edit type gsm con-name “GPRS”
*set gsm.apn airtelgprs.com
*nmcli> save
*nmcli> quit
-
nmcli device connect
-
Results of nmcli device
DEVICE TYPE STATE CONNECTION
eth1 ethernet disconnected – (This the SIM module in which we are try to connect)
wlan0 wifi disconnected –
eth0 ethernet unavailable –
lo loopback unmanaged –
Below are serial logs
Starting kernel …
[cd
[ OK ] Started Network Time Service.
[ OK ] Started /etc/rc.local Compatibility.
[ OK ] Started Permit User Sessions.
[ OK ] Started DNS forwarder and DHCP server.
[ 6.031830] hub 4-1:1.0: USB hub found
[ 6.036514] hub 4-1:1.0: 4 ports detected
[FAILED] Failed to start Arp filtering arptables.
See ‘systemctl status arptables.service’ for details.
Starting Network Manager Script Dispatcher Service…
Starting Weston Wayland Compositor (on tty7)…
[ OK ] Started Serial Getty on ttymxc0.
[ OK ] Started Getty on tty1.
[ OK ] Reached target Login Prompts.
[ 6.160998] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ OK ] Started Weston[ 6.170877] fec 30be0000.ethernet eth0: Unable to connect to phy
Wayland Compositor (on tty7).
[ OK ] Started Network Manager Script Dispatcher Service.
[ 6.219037] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6.244429] usb 3-1.4: new full-speed USB device number 3 using xhci-hcd
[ OK ] Created slice User Slice of UID 0.
[ OK ] Started Session c1 of user root.
[ OK ] Created slice system-user\x2druntime\x2ddir.slice.
[ OK ] Started /run/user/0 mount wrapper.
Starting User Manager for UID 0…
[ 6.356681] usb 3-1.4: not running at top speed; connect to a high speed hub
[ 6.500480] usb 3-1.5: new high-speed USB device number 4 using xhci-hcd
[ OK ] Started Variscite Bluetooth setup service.
[ OK ] Reached target Multi-User System.
Starting Update UTMP about System Runlevel Changes…
[ OK ] Started User Manager for UID 0.
[ OK ] Started Update UTMP about System Runlevel Changes.
[ 6.641082] usbcore: registered new interface driver ftdi_sio
[ 6.655464] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 6.668686] ftdi_sio 3-1.4:1.0: FTDI USB Serial Device converter detected
[ 6.679277] usb 3-1.4: Detected FT4232H
[ 6.690160] usb 3-1.4: FTDI USB Serial Device converter now attached to ttyUSB0
[ 6.703471] ftdi_sio 3-1.4:1.1: FTDI USB Serial Device converter detected
[ 6.716920] usb 3-1.4: Detected FT4232H
[ 6.725868] usb 3-1.4: FTDI USB Serial Device converter now attached to ttyUSB1
[ 6.754390] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6.761737] ftdi_sio 3-1.4:1.2: FTDI USB Serial Device converter detected
[ 6.778847] usb 3-1.4: Detected FT4232H
[ 6.785604] usb 3-1.4: FTDI USB Serial Device converter now attached to ttyUSB2
[ 6.798586] ftdi_sio 3-1.4:1.3: FTDI USB Serial Device converter detected
[ 6.812318] usb 3-1.4: Detected FT4232H
Starting WPA supplicant…
[ 6.844876] usb 3-1.4: FTDI USB Serial Device converter now attached to ttyUSB3
[ OK ] Started WPA supplicant.
[ 7.008077] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ OK ] Started Network Manager Wait Online.
[ 10.172412] usb 3-1.3: new high-speed USB device number 5 using xhci-hcd
[ 10.556151] GobiNet: Quectel_Linux&Android_GobiNet_Driver_V1.6
[ 10.577745] usbcore: registered new interface driver cdc_wdm
[ 10.640794] GobiNet 3-1.3:1.4 eth1: register ‘GobiNet’ at usb-xhci-hcd.1.auto-1.3, GobiNet Ethernet Device, 22:14:99:d9:6d:e8
[ 10.654532] creating qcqmi1
[ 10.667064] usbcore: registered new interface driver GobiNet
[ 10.668341] usbcore: registered new interface driver qmi_wwan_q
[ 10.685114] usbcore: registered new interface driver option
[ 10.696761] usbserial: USB Serial support registered for GSM modem (1-port)
[ 10.720893] option 3-1.3:1.0: GSM modem (1-port) converter detected
[ 10.727897] usb 3-1.3: GSM modem (1-port) converter now attached to ttyUSB4
[ 10.735474] option 3-1.3:1.1: GSM modem (1-port) converter detected
[ 10.742480] usb 3-1.3: GSM modem (1-port) converter now attached to ttyUSB5
[ 10.750026] option 3-1.3:1.2: GSM modem (1-port) converter detected
[ 10.757060] usb 3-1.3: GSM modem (1-port) converter now attached to ttyUSB6
[ 10.764675] option 3-1.3:1.3: GSM modem (1-port) converter detected
[ 10.771738] usb 3-1.3: GSM modem (1-port) converter now attached to ttyUSB7