EM7565 Ping hangs after 5-6 times

[subashbabu.gowda]

Hi All,

I am using EM7565 4G module for data connection.

I installed GobiNet and GobiSerial Driver on ucLinux.

AT!SCACT=1,1 returns OK with 1,1 and I got eth1 interface attached to it.

ping -I eth1 8.8.8.8 was successful but hangs after pinging 7-8 times. If I halt it and ping again it hangs.
Do I need to do any other configurations. Does this cause issue in actual data transfer. My use case is to transfer files to cloud.

Thanks,
Subash

[jyijyi]

did you shut down the modem manager?

how about doing DHCP like “udhcpc -i wwan0”?

How about using the USB driver from MBPL?

Example on establishing data connection by AT!SCACT via MBPL R20 driver

Here is an example to establish data connection by AT!SCACT via MBPL R20 driver: Module: WP7609 FW: R13 MBPL: R20 PC Environment: Ubuntu 18 need to install the MBPL R20 driver for qmi_wwan and qcserial (MBPL_Drivers_USB_R20_ENG1-src.tar.gz) avoid the Ubuntu changing the network name: ln -s /dev/null /etc/systemd/network/99-default.link sudo apt-get install libqmi-utils sudo apt-get install udhcpc now insert the USB to PC sudo chmod 777 /sys/class/net/wwan0/qmi/raw_ip …

[subashbabu.gowda]

Hi @jyijyi
udhcpc -i eth1
I am getting the IP address but its not updating the interface. I need to manually edit ifconfig to add IP

I am not able to ping outside network also.

/sys/class/net/eth1/ ----> I dont see qmi folder here

I am not using ubuntu but running on uclinux. Not able to cross compile libqmi.
Please suggest to get mmcli for arm

[jyijyi]

How about using the USB driver from MBPL?

Example on establishing data connection by AT!SCACT via MBPL R20 driver

Here is an example to establish data connection by AT!SCACT via MBPL R20 driver: Module: WP7609 FW: R13 MBPL: R20 PC Environment: Ubuntu 18 need to install the MBPL R20 driver for qmi_wwan and qcserial (MBPL_Drivers_USB_R20_ENG1-src.tar.gz) avoid the Ubuntu changing the network name: ln -s /dev/null /etc/systemd/network/99-default.link sudo apt-get install libqmi-utils sudo apt-get install udhcpc now insert the USB to PC sudo chmod 777 /sys/class/net/wwan0/qmi/raw_ip …

[subashbabu.gowda]

@jyijyi I am using the GobiNet and GobiSerial driver not default Linux drivers but not able to cross compile mmcli so using AT commands

[jyijyi]

no idea why it does not work for your platform on gobi driver, gobi driver should be working fine in Ubuntu platform
you might need to try the driver in MBPL