ROS and 4g/3g modem use
Has anyone ever tried using ROS with 4G/3G communications? I have a 4G modem that is connected. When I start up my launch file, it seems to block, then after about 5 mins whatever it was doing times out and the launch file continues to begin to launch my actual ROS nodes. When I am using a wlan connection, it instantly launches the ROS nodes. Is the blocking because it really is searching for a way to use wlan vs some other method of communication? If it helps, I am using pppd to launch the 4g modem in Ubuntu.