Manufacturer Refurbished cable modem use

[coldascrystal]

Hi was wondering it it would be safe to get a used or manu refurb modem. I know that the ones u get from cable companies are constantly reused. Also on my router if i get a new modem will i also need to change the mac address or will that happen automaticlly?

[JamesNorth101]

You dont need to worry about the MAC address

IP is all that matters and reused modems are fine for that