I'm having the same problems. Trying to make a 3g connection available for all users, but this just causes the connection to disappear. Spang's procedure doesn't help me: I can run through the whole 3g connection creation wizard, but afterwards the connection just never gets added to the list.
When running nm-connection-editor from command line, I get these lines in the process of trying to create the connection:
** (nm-connection-editor:6591): WARNING **: nm_connection_list_new: failed to load VPN plugins: Couldn't read VPN .name files directory /etc/NetworkManager/VPN.
** (nm-connection-editor:6591): WARNING **: Tried to set deprecated property gsm/band
** (nm-connection-editor:6591): WARNING **: Tried to get deprecated property gsm/puk
..
I'm having the same problems. Trying to make a 3g connection available for all users, but this just causes the connection to disappear. Spang's procedure doesn't help me: I can run through the whole 3g connection creation wizard, but afterwards the connection just never gets added to the list.
When running nm-connection- editor from command line, I get these lines in the process of trying to create the connection:
** (nm-connection- editor: 6591): WARNING **: nm_connection_ list_new: failed to load VPN plugins: Couldn't read VPN .name files directory /etc/NetworkMan ager/VPN. editor: 6591): WARNING **: Tried to set deprecated property gsm/band editor: 6591): WARNING **: Tried to get deprecated property gsm/puk
** (nm-connection-
** (nm-connection-
..