I want to ask a question to all DIY who knows electric and electronic.

I have problem with my USB dac (alien DAC), whenever i switch on my table fan or switch on my ceiling light, they seems like interrupting my USB DAC. The DAC have no sound after that. I have to replugged the usb cable again.

I also notice once in a while, my mouse light(also usb connected) responding on the activity above.

Any idea why might cause this?