A really nerve-racking problem.
It is caused by the fact that the entry for the device used for the broadband
connection is
missing in the connection profile located in
"/etc/NetworkManager/system-connections/".
Workaround:
1. If a USB stick is used for broadband connection plug it in and wait some
seconds until the
device driver has been loaded.
2. Invoke the command "nmcli dev" and look for the gsm device name. - If no gsm
device is listed
wait additional seconds and repeat the command.
3. Look for the name of your broadband connection profile in directory
"/etc/NetworkManager/system-connections/".
4. As root user add the line "device=" to connection profile's
"connection" section. Here must be replaced be the name listed
in the "device"
column of the "nmcli dev" output. - That's all.
Example:
1. Let's assume device "ttyHS0" is listed for gsm connections by "nmcli dev".
2. Let's further assume the broadband connection is named named "t-mobile".
3. As root user add the line "device=ttyHS0" to the section "[connection]" of
the file
"t-mobile". - This file is located in the directory mentioned above.
-
Note: If the USB Modem is disconnected (unplugged) and then reconnected the
device name
changes. But that's not network-manager's fault.
Michael Schwinck
Mainz, Germany
--
On Fri, 8 May 2015 22:49:58 +0200 Paul Seyfert
wrote:
>
> Package: network-manager
> Version: 0.9.10.0-7
> Severity: important
>
> Dear Maintainer,
>
>
> I connect a usb umts modem to my computer (i am asked for the PIN), connect to
> the internet with it, disconnect from the network, unplug, replug (i am asked
> for the PIN again), i try to connect to the internet and receive the error
> 'Connection '' is not available on the device ttyUSB35
> at this time' (http://mathphys.fsk.uni-heidelberg.de/~pseyfert/nm.png)
>
> when restarting the network manager (systemctl restart
> network-manager.service)
> the connection can be established.
>
> (i didn't do any further debuging)
>
>
>
> -- System Information:
> Debian Release: 8.0
> APT prefers stable
> APT policy: (900, 'stable')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
>
> Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
>
> Versions of packages network-manager depends on:
> ii adduser3.113+nmu3
> ii dbus 1.8.16-1
> ii init-system-helpers1.22
> ii isc-dhcp-client4.3.1-6
> ii libc6 2.19-18
> ii libdbus-1-31.8.16-1
> ii libdbus-glib-1-2 0.102-1
> ii libgcrypt201.6.3-2
> ii libglib2.0-0 2.42.1-1
> ii libgnutls-deb0-28 3.3.8-6
> ii libgudev-1.0-0 215-17
> ii libmm-glib01.4.0-1
> ii libndp01.4-2
> ii libnewt0.520.52.17-1+b1
> ii libnl-3-2003.2.24-2
> ii libnl-genl-3-200 3.2.24-2
> ii libnl-route-3-200 3.2.24-2
> ii libnm-glib40.9.10.0-7
> ii libnm-util20.9.10.0-7
> ii libpam-systemd 215-17
> ii libpolkit-gobject-1-0 0.105-8
> ii libreadline6 6.3-8+b3
> ii libsoup2.4-1 2.48.0-1
> ii libsystemd0215-17
> ii libteamdctl0 1.12-2
> ii libuuid1 2.25.2-6
