Need help finding the cause of these seemingly connectivity-based issues.

[Lurkios]

Network problems can be a bit of a pain to diagnose. At first glance I'd say this sounds a lot like packet loss.

What service are you using, and how are you connecting to it? (Are you using satellite, cable, fiber, 3/4g access point? Connected via wired or wireless?)

During one of these periods of poor connectivity, try running the command: "ping -n 120 8.8.8.8 > C:\out.txt" from a Windows systems command prompt or run menu. It will create a file called "out.txt" in your "C:\" directory which you can then upload to a site like www.pastebin.com for us to have a look at (this file will include your Windows username near the top, feel free to redact that).