Please in a terminal run: "apport collect 1042456". Please also add debug logs: https://wiki.ubuntu.com/DebuggingModemmanager
Bug #1079273 indicates that the connection sometimes succeeds. Are you sure that your LTE/4G coverage is good there?
Please in a terminal run: "apport collect 1042456". Please also add debug logs: https:/ /wiki.ubuntu. com/DebuggingMo demmanager
Bug #1079273 indicates that the connection sometimes succeeds. Are you sure that your LTE/4G coverage is good there?