hi,

On Sun, Aug 11, 2019 at 1:57 PM JH <jupiter.hce@gmail.com> wrote:
>
> More observation about the network connection, the device has two
> network interfaces, WiFi mlan0 and LTE wwan0, I think that problem is
> likely in connman, not in ofono as in some stage, the wifi IP address
> lost as well, but it came back.
>
> Why connmand contently calling to add and to del both mlan0 and wwan0
> in route table? How does the connman manage the route, dhcp to refresh
> interface IP address?

can you check with the ofono script test/list-contexts if the method
is static or dhcp?
I believe this can be the problem: if ofono managed to get an IP
address, likely with at+cgpaddr and/or at+cgcontrdp,
then it passes it to connman, and then it is set on the interface...
static, with no lease expiration.

best regards,
Giacinto