Network Monitor Tool (Free)

Use the Menu to select one of the many tasks.\
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Ping, Port Scanner, DNS and Network Info: are the regular tools used in Networking. Ping here uses Socket connect, and not ICMP messages.\
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Monitor: Enter an IP address and the tool will monitor the server's health periodically. Either HTTP or a TCP 3-way handshake method is used for checking connectivity.\

Please kill the app and start afresh for Monitor, in case it does not work.\

History: Whenever an IP address is entered, it is also saved in History sub-menu. Select the IP address, and click on Select, to auto populate this on all menu screens.