Your example is an excellent example of the sort of problem the AI could diagnose for regular users. Regular user might see their web browser acting flaky, blame their ISP, switch their ISP and find it doesn't help, try a different web browser once they learn they exist, get different problems... But it would hopefully be obvious to a diagnostics system if it got fed the system logs and details. Or maybe it would spit out some rubbish related to Windows 10 sourced from a forum post in 2018.