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During gameplay it will randomly freeze and make a sort of buzzing/humming sound. It’s been working perfectly fine for a year, the only difference is that I recently got an external hard drive for it. Is there any special configuration that I need to do? Is the external HD the issue?
If your hard drive is one uses the Wii U console as the main power source, it is very likely that it could be the cause for the random freezing. When it takes too much power away from the USB and the console, it can overwhelm the system. Check out this troubleshooting guide on how to test if your external hard drive is the issue: Nintendo Wii U Troubleshooting
