There's a lot of different ways you can do it. You can use Windows built in tool in a command prompt called netstat, and there's software (probably websites too) that will run the traces.
https://sourceforge.net/projects/openvisualtrace/ is one such piece of software
Just need to find the address of the GFN server and trace to it. That can be done using packet sniffers or network traffic viewers. *** Note: this will only give you the data path (hops) between your device and the GFN servers, there could be issues in the path from GFN to the actual game server you're connecting to. So it only gives you half of the total picture. ***
If you search google or youtube you'll find a wealth of information on how to troubleshoot connections with traceroute and ping tests.
Use this open source visual tracer to find where you have bad routing. Might be in your own network, might be external. https://sourceforge.net/projects/openvisualtrace/
Next time you get a higher ping game (prep beforehand) run a traceroute. Do the same when you get a normal east coast ping. Use the ip of the server in a program like this open source one https://sourceforge.net/projects/openvisualtrace/
Maybe you can find the issue. You may very well have been routed through a faulting or oversaturated router.
Assuming Windows. Write down the destination URL or IP address Type in the search run cmd This will open a command line window.
Results will appear incrementally down as each hop is looked at. First Hop should be your local ip address then your gateway. From there on out assuming you don’t have a deep network you will be into your providers network. First few hops should be fast latency numbers like 1ms to maybe 7 or 8ms. After that latency numbers will increase. Looking for oddly high numbers. You also get an idea of the route your traffic is taking by looking at the resolved name of the device.
If you want a visual representation of the path your traffic is taking Visual Trace Route is an application you can use. This can be downloaded from SourceForge. Should be noted that sometimes the GEO location in Visual Router can be off and traffic can appear to go to weird places.
Well, not sure about OSX, but generally most traceroute tools will only give you the IP addresses of the routers the signal visits.
But here is one that works on all OS's.
Again, that site cannot show the path from your computer to what you want to connect to, it can at most show you the path between your computer and it, and the destination. You will need to download software to see it from your IP to whatever site.