@plazykranch If your computer is Windows based, you should consider installing Glasswire, which will monitor the data usage of the Windows based computer it's installed on. It's free, and not at all intrusive, nor resource hungry. The "firewall" description you will see on their webpage concerns a more thorough set of adjustments for your built in Windows Firewall that Glasswire gives you, but you don't have to use that part of it, and simply installing Glasswire doesn't change anything about your Windows Firewall. Glasswire is a great tool to have, and many of us use it. It can't tell you about your past data usage, but it can monitor your data usage going forward, so if whatever was happening with your computer, data wise, happens again, you'll be able to see just what used the data.
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