FYI - The engine has a C++ module for ICMP pings

[mikeseese]

For those stumbling on this plugin, you can find a built-in module in the engine called Icmp (located at Engine/Runtime/Online/ICMP). It does not have blueprint bindings, but if you have the C++ knowledge, you can add blueprint wrappers

Edit: I've published a simple open source plugin that does this: https://github.com/IncantaGames/unreal-bp-icmp-ping