If your computer cannot detect the DNS server of your ISP, you often have a frequent internet interruption. Therefore, you must have a software like EMCO Ping Monitor to notify you of this interruption so as to avoid data loss or the interruption of the current download.
EMCO Ping Monitor is a software that can warn you by performing many actions when your computer is disconnected on the LAN or the internet. These actions include shutdown, reboot, standby, which can be executed if pings to hosts are failed three times. EMCO Ping Monitor is a standalone software that can run in the system tray.