You may have seen the term ping jitter while doing an internet speed test. Ping Jitter is is a measure of how much latency varies over a period of time. Lower jitter is advantageous because it means your ping times are more consistent, and therefore your connection are more stable. A low ping time is always preferred because it takes less time to for packets to reach and return from the server. In everyday networking, a low pings will significantly help VOIP and online gaming performance.
One way to reduce a high ping on a DSL connection is to contact the ISP’s technical support team and ask to have interleaving turned off on the line. If the DSL modem can maintain a strong connection without this error-correcting technology in place, roundtrip ping can be reduced by about 30ms.
Ping jitter can be decreased by removing any interference which may be causing an unstable internet connection. Check the wiring in your more of office to minimize direct interference (eg. don’t have power cables near coaxial cables, make sure to minimize splitters on the line and use high-quality cables, etc). On wireless connections it’s important to make sure you’re on an uncongested wireless channel. Using 5GHz instead of the saturated 2.4GHz can also help stabilize a connection.
Running a traceroute (using tracert in command prompt on Windows or within Network Utilities on OS X) can show if a connection is unstable between the networking equipment that you own or if the network trouble is on your ISP’s end.