I have recently purchased a tp-link Wifi Range Extender TL-WA850RE from an online store in Australia. On the box it mentions as having 3 yrs warranty. Do I still need to register for the warranty. S/N

I have received tp-link router VX230v_2E21 from my internet service provider (Southern Phone) last week. I do not have a separate purchase order bill for this router. when I spoke to them, they mentio