Comment 5 for bug 997730

I have managed to workaround the issue by creating a NetworkManager dispatcher.d script. It basically restarts the mumble-server when it detects that my connection is up.

Put this script into /etc/NetworkManager/dispatcher.d/90mumblerestart
=============================================================

#!/bin/sh -e

IF=$1
STATUS=$2

if [ "$IF" = "em1" ]
then
        case "$STATUS" in
                up)
                        service mumble-server restart
                ;;
                *)
                ;;
        esac
fi

====================================================

Of course, replace em1 with whatever network interface you're using. This script works around the problem for me and I am able to connect to the mumble-server whenever I restart. The only downside is that whenever you disconnect/reconnect on your connection, the mumble server will get restarted, but I figured that if you're doing that all clients will be dropped anyways so it really makes no difference.