Fongo on Android disconnected on Mobile Data

[Anri]

Hello,

I just ported my number from Bell and signed up for the LTE Mobile Data Plan.

Fongo app stays connected while phone connected to the Wi-Fi network, but as soon as Wi-Fi gets disconnected Fongo looses connection and shows red icon in the notification tray with the status "Network Connection Missing" while phone is in the sleep mode. As soon as I unlock the phone connection gets restored.

Fongo - Connection Missing.png

While phone locked and in the sleep mode calling my number results in the connection to the voicemail after series of long tones.

My phone is unlocked rooted Nexus 5 using Android 4.4.3


How I can fix the connectivity issue while on the mobile network?

Thank you.

[Anri]

Fixed.

Apparently I had Battery saver mode turned on (under Battery settings) and within this mode "Disable Mobile Data" was selected.
As soon as I disable that setting everything start working .


Anri