[Bug 1402094] Re: Network Manager Applet has duplicate entry changing IPv4 Method

[Anthony]

Is there any way that I can make networkmanager to assign some unique
names or device derrived name instead of `Auto Ethernet` so that we can
avoid the names conflict?

After I've upgraded to Ubuntu Vivid which uses systemd(though I'm not
sure if it's directly related or it's just a bug / regression of
network-manager) both of my mobile broadband devices get the "Auth
Ethernet" name and are unable to get connected simultaneously.

I can temporarry fix it using  `nmcli con add type ethernet con-name my-
office ifname ens3` but I would rather like to have network-manager
handle this automatically (i.e. assign a random / unique conn name).

Use case:

I have two broadband USB devices and I need to connect to both of them. The issue is that NetworkManager displays them both as `Auto Ethernet` (duplicate in the network manager applet) and when I try to connect to the second network it errors out ``(32) Connection 'Auto Ethernet' is already active on enp0s20u``. 
  When I try to "edit" the connections it displays only one `Auto Ethernet` connection. 
  
 `/etc/NetworkManager/system-connections` also lists only one `Auto Ethernet`

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https://bugs.launchpad.net/bugs/1402094

Title:
  Network Manager Applet has duplicate entry changing IPv4 Method

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