Gap between Initial Connection and TTFB

I noticed that my test results are vastly different than the ones I’ve seen here. Usually, the waterfall is very continuous. However, mine breaks up quite a bit and has a big gap between Initial Connection and Time to First Byte.

Here I just test a static page and the problem is very apparent.

What could cause something like this? Thanks for the help in advanced!

That’s going to be out of your control and a function of the machine the test is running on (probably Chrome starting the renderer process). Here is the same test from Dulles:

That is so beautiful!! Thanks pmeenan! I’ll use the machine from Dulles from now on.