nm-tray does not prompt for password with VPN connections

[Linux-Elch]

1) lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
2) see attached apport report

3) When I try to connect to our companies Cisco Anyconnect VPN server I expect to get a dialog for authentication as I did on my Lubuntu 16.04 installation

4) Instead of a dialog I only get a notification "Connection lost, no longer connected to VPN"

I verified that the VPN connection setup is correct by using the command line interface:

nmcli -ask connection up "ConnectionName"

This will ask me on the terminal for my authentication details and when the connection is established the network manager applet will show "Connection established"

However, when I use nmcli without "-ask" it will fail as well, while the same command on my 16.04 installation will bring up the dialog.

[Linux-Elch (elch868-linux)]

The issue seems to specific to Lubuntu 20.04.
Double checked on fresh installs of Lubuntu 20.04 and Xbuntu 20.04 in virtualbox.
Lubuntu fails, Xubuntu works as expected.

[Linux-Elch (elch868-linux)]

Figured it out by myself that nm-tray is broken.
By disabling nm-tray in Autostart the system is now working as expected.

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1886561

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

nm-tray is light and based in Qt, which is great. Its VPN support, however, is lacking, as you have discovered.

Incidentially, the workaround is discussed in the Lubuntu manual:
https://manual.lubuntu.me/stable/G/AdvancedNetworking.html

[Jean (jean-harrault)]

Same issue with lubuntu 22.04