Manage 3G modem with ModemManager through Network Manager

Thu Mar 30 09:48:25 UTC 2017

On Thu, Mar 30, 2017 at 11:39 AM, Francesco Andrisani
<francesco.andrisani at acotel.com> wrote:
> NetworkManager[29785]: <warn>  [1490866215.6444] keyfile: error loading
> connection from file /etc/NetworkManager/system-connections/Modem: File
> permissions (100644) were insecure

You may want to run this:

$ sudo chmod 600 /etc/NetworkManager/system-connections/Modem

Although I don't think this is related to the issue of not having MM
communicate with NM...

Do you have "NetworkManager-wwan" installed?

-- 
Aleksander
https://aleksander.es