rather than a 3.5mm jack, as the software needs to identify the specific hardware ID to verify the license. Did you recently purchase a new headset
If you bought a pre-built PC from Dell, HP, Lenovo, or ASUS, check your manufacturer software. Many "Nahimic" or "Armoury Crate" sound drivers include a free DTS license tied to your motherboard’s serial number. Dts Sound Unbound License Code