VPN Problems (VPNC / Cisco) - Connection data can be saved

[starbright]

Do have Linux Mint 21 (upgrade from 20.3) / Cinnamon.
I want to add a new VPN. (Existing VPN works)

There is installed
"sudo apt install network-manager-vpnc network-manager-vpnc-gnome"

My issue is, that if I open
Networkmanager, VPN, + (or also change an existing one) - the "save" button is greyed out and doesn't work.

Any idea what can be the reason for that. Where are this data (about an existing VPN connection) are stored?

[starbright]

Found where my ethernet connections are saved:
/etc/NetworkManager/system-connections

This is only rw for root... But isn't that normal? On the other hand I will create my user network settings for myself...

[pavel124]

I have the same problem on Mint 21.1. The "save" button is greyed out.
When I add new Cisco vpnc connection from network settings, I've get error: Unable to load VPN connection editor.
It looks like vpnc editor problem.
As a workaround, I copied the settings from my old workstation on Mint 20.3 to /etc/NetworkManager/system-connections.