Two programs to see network-connected devices

From the concerns of many users and router networks, especially Wireless callers know their network and how many fear that there will be stealing from their own Internet

GlassWire to show online program

GlassWire shows you what network activity occurred while you were away or logged out from your computer. No more wondering what your computer was doing while you were out. Just go back in time with GlassWire's graph and see exactly what happened in detail.
Link:glasswire

Wireless Network Watcher



Wireless Network Watcher is a small utility that scans your wireless network and displays the list of all computers and devices that are currently connected to your network.
For every computer or device that is connected to your network, the following information is displayed: IP address, MAC address, the company that manufactured the network card, and optionally the computer name.
Link:Wnetwork watcher