Arctis 7 Headset dongle turns on for 5 seconds, then turns off.

I woke up today, went on my computer, and my headset wasn’t recognised in the devices. I realised there wasn’t a light on the dongle. When I plugged it out and in again, the dongle lit up for 5 seconds, paired with the headset, then turned off. I tried changing USB ports, but it keeps happening. I haven’t had this headset for long, and the dongle has sat peacefully on my desk since I got it.