If you’re a hardcore tech user, more than likely you’ve run into a few USB troubles here and there, such as this one afflicting my Mac OS X Mavericks using DJ friend:
I’ve had a few issues myself over the years, ranging from printers suddenly vanishing from the OS to mice that refuse to wake when the PC is resumed from sleep. I once returned a Belkin hub under warranty 3 times in a row because devices connected to it would disappear after the PC had been running for over a day or so.*
Fortunately, Microsoft has an entire blog devoted to USB and its attendant issues. Unfortunately, like most good things at Microsoft, it isn’t promoted at all. The blog is great for troubleshooting, but it’s also highly informative for power users who want to know how Windows handles USB under the hood.
*The root causes of the above issues are Link Power Management & Selective Suspend (and their equivalents on other desktop OSes). Both features allow the OS, the host device, and/or the client device to move to very low power states so as to save energy. Apparently, their implementation can vary at the OS, host, and client levels, resulting in odd behavior.