Esto es el no va mas de Jazztel, caerse antes de conectar xD
Jun 6 21:05:55 user crit klogd: ADSL G.994 training
Jun 6 21:06:00 user crit klogd: ADSL G.992 started
Jun 6 21:06:04 user crit klogd: ADSL G.992 channel analysis
Jun 6 21:06:09 user crit klogd: ADSL link up, interleaved, us=804, ds=19552
Jun 6 21:06:13 daemon crit pppd[299]: PPP server detected.
Jun 6 21:06:13 daemon crit pppd[299]: PPP session established.
Jun 6 21:06:16 daemon crit pppd[299]: PPP LCP UP.
Jun 6 21:06:16 daemon crit pppd[299]: Clear IP addresses. PPP connection DOWN.
Jun 6 21:06:16 daemon crit pppd[299]: Received valid IP address from server. Connection UP.
Jun 6 21:06:18 daemon crit pppd[299]: Clear IP addresses. PPP connection DOWN.
Y por repetido eh, que no es un caso suelto de mi log xDD El colmo...