I have just installed this to check it out.
I am seeing normal pings when testing against popular URLs.

However when I run a speed test and watch what's happening in multiping, there are massive spikes (200-290ms) during the test.
But the results from the speed test are excellent showing my latency around 11ms.

What's going on here? Is this normal?

Also, when I added the new address of my gateway IP (it adds and monitors all the devices connected to my network) there is zero activity on my main PC (the one I'm using now)? It's definitely connected and the one I use the most yet multiping isn't reporting any ping info at all just on this PC?