Found following solution working on OTA-12: Within Terminal: /usr/share/ofono/scripts ./test-network-registration /ril_0 default
Switches back to hsdpa if available without disconnection from the network. Testing with ping 8.8.8.8 If there is no reply the network manager service hangs, then following solves the problem sudo service network-manager restart -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1424791 Title: Ubuntu Phone: cellular data did not recover after losing coverage To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1424791/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs