Well, after looking at the logs, it seems the connection is intermittent.
Here is what a slice of the logs looks like :
I get this error over and over again after flashing my pi a first time (i think).
Any one can help ?
0000000004 system: INFO: Cloud: connecting
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injectorboost::system::system_error >'
what(): resolve: Host not found (non-authoritative), try again later
Firmware exited with status pid 2993 SIGABRT (signal 6)
Quitting firmware gracefully