Fping (open source) - fping is a program to send ICMP echo probes to network hosts, similar to ping, but much better performing when pinging multiple hosts.

GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...

NetTK - NetTK, Network Tool Kit, is an Open Source alternative for monitoring and troubleshooting your...

TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.

PingDoctor - PingDoctor is software that is considered to be the most powerful and easiest to use network route analyzer.

NetWorx - NetWorx is a simple and powerful tool that helps you objectively evaluate your bandwidth situation.