WP7608 network disconnect issue

Dear Team,

Below are the issues faced while testing the application through onboard WP7608 module placed in our carrier board.

  1. While checking the internet connectivity, network is disconnecting after 10-15 mins and again, its unable to connect to the internet with WP7608 module

Case-1:.Below Scenario we have tested and the Network we selected is AIRTEL

Following are the test case i have tried so using below set of commands to connect the internet from the HOST.

$ ifconfig wwan0 down

$ echo Y > /sys/class/net/wwan0/qmi/raw_ip

$ ifconfig wwan0 up

$ qmi-network /dev/cdc-wdm0 start

$ udhcpc -i wwan0

root@phyboard-mira-imx6-14:~# ping google.com

PING google.com (172.217.160.142): 56 data bytes

64 bytes from 172.217.160.142: seq=0 ttl=55 time=63.395 ms

64 bytes from 172.217.160.142: seq=1 ttl=55 time=45.048 ms

64 bytes from 172.217.160.142: seq=2 ttl=55 time=41.914 ms

64 bytes from 172.217.160.142: seq=3 ttl=55 time=41.550 ms

64 bytes from 172.217.160.142: seq=4 ttl=55 time=42.220 ms

64 bytes from 172.217.160.142: seq=5 ttl=55 time=40.950 ms

64 bytes from 172.217.160.142: seq=6 ttl=55 time=52.766 ms

64 bytes from 172.217.160.142: seq=7 ttl=55 time=42.527 ms

64 bytes from 172.217.160.142: seq=8 ttl=55 time=52.323 ms

64 bytes from 172.217.160.142: seq=9 ttl=55 time=41.119 ms

Note:- After 10-15 mins the ping stops, and its works only after reconnecting using below set of commands

$ qmi-network /dev/cdc-wdm0 stop

$ qmi-network /dev/cdc-wdm0 start

$ udhcpc -i wwan0