Regarding the "null" notification, i have tried another usb modem, and even though i receive that error, the modem works as it should. So it seems that in this case the alcatel modem is having an issue with your app. This is just a fyi, in further development. Good job on your work! Congra...

It is very lightly customized, based on android nougat. It's strange how on ppp2 it goes further than ppp3 but still gets stuck on building network even if i let it for 20minutes. The log just fills with the below and so on ff03c0210b020008681ac880de58 < c0230201000500fd30 > 802101000016030600000000...

No PPP log at all. But i do get the "Developer warning for package "de.draisberghof.pppwidget3" Failed to post notification on channel "null" See log for more details" prompt error and gets stuck at installing device, if i remember correctly.

I have some issues with the alcatel modem. With ppp3 i'm unable to use the modem. The app gets stuck at Device manufacturer string: rockchip Total RAM: 4080 MB. Available RAM: 3217 MB New device on /dev/bus/usb/003/005 Class of interface 0 is 0xFF Looking at USB device 1bbb:0203 with class 255 Devic...