Hello

I have thinkpad with integrated lte modem sierra em7345 and installed KDE neon user edition on it. I can access to my modem via mmcli (read sms, create connections), can create connection via NetworkManager without any error. System even obtain ip address, dns and gw but i have no internet I tried to use this modem with ubuntu 20.04 from live CD and it works fine with similar settings. Ubuntu 20.04 and KDE Neon have similar versions of NetworkManager and ModemManager.

I have no any idea what is missing in kde neon. Can anybody helps me?

Now i can answer to myself: downgrade modemmanager to version 1.12.8-1 resolve the problem.

Code: Select all

sudo apt-get install modemmanager=1.12.8-1

and lock update this version to newer:

Code: Select all

echo "modemmanager hold" | sudo dpkg --set-selections