Software & Apps Windows 97 97 people found this article helpful How to Perform a Computer Ping Test (And When You Need To) Diagnose potential network problems with this useful tool By Bradley Mitchell Writer An MIT graduate who brings years of technical experience to articles on SEO, computers, and wireless networking. our editorial process LinkedIn Bradley Mitchell Updated November 18, 2019 Windows The Ultimate Laptop Buying Guide Tweet Share Email A ping sends messages from one computer to another to troubleshoot Internet Protocol network connections. A ping test determines whether a client (computer, smartphone, or similar device) communicates with another device across a network. In cases where network communication is successfully established, ping tests determine the connection latency (delay) between the two devices. Ping tests are not the same as internet speed tests. A ping tests whether or not a connection can be made; a ping does not determine the connection speed. How Ping Tests Work Ping uses the Internet Control Message Protocol (ICMP) to generate requests and handle responses. When you execute a ping test, it sends ICMP messages from the local device to the remote one. The receiving device recognizes the incoming messages as an ICMP ping request and replies accordingly. The elapsed time between sending the request and receiving the reply on the local device is the ping time. How to Ping Networked Devices In the Windows operating system, the ping command runs ping tests. It's built into the system and is executed through the Command Prompt. You must know the IP address or hostname of the device to be pinged. To avoid issues with DNS, use the IP address. If DNS doesn't find the right IP address from the hostname, the problem might rest with the DNS server and not with your device. The Windows command to run a ping test against a router with the 192.168.1.1 IP address looks like this: ping 192.168.1.1 The syntax to run a ping test against a website with the hostname lifewire.com looks like this: ping lifewire.com If you want to do things like adjust the timeout period, the Time To Live value, or the buffer size, modify the ping command syntax. How to Read a Ping Test When a ping is sent to a website such as lifewire.com, the result looks like this: Pinging lifewire.com [220.127.116.11] with 32 bytes of data:Reply from 18.104.22.168: bytes=32 time=20ms TTL=56Reply from 22.214.171.124: bytes=32 time=24ms TTL=56Reply from 126.96.36.199: bytes=32 time=21ms TTL=56Reply from 188.8.131.52: bytes=32 time=20ms TTL=56Ping statistics for 184.108.40.206: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds: Minimum = 20ms, Maximum = 24ms, Average = 21ms The IP address in this example belongs to Lifewire, which is what the ping command tested. The 32 bytes is the buffer size, and it's followed by the response time. The result of a ping test varies depending on the quality of the connection. A good broadband internet connection results in ping test latency of less than 100 ms, and often less than 30 ms. A satellite internet connection may have a latency that is greater than 500 ms. Limitations of Ping Testing Ping accurately measures connections between two devices at the time a test is run. Network conditions change at a moment's notice, which makes old test results irrelevant. Additionally, internet ping test results vary greatly depending on the target server that's chosen. To get maximum value from ping testing, choose ping tools that are easy to use and point them at the right servers and services you want to troubleshoot.