There are tools available for use in a program called Network Utilities that can be used to diagnose computer networks. One of the functions of the apps is:

• External IP addresses and comprehensive information about internet connections are displayed in network information. Additionally, a traffic statistics tool and wifi analyzer are included.
• IP discover will allow you to locate all WiFi network devices.
• UPnP scan and command 
• Ping
Trace routes
• SSH and Telnet clients
and more!

The app is for free and will not require you to spend a single penny. Download it now on the Google Play Store and learn more about this application