[Kushan]

Not sure if there's an incorrect use in terminology here, but there's a distinct difference between "setting a static IP for everything" and "Putting everything on a DHCP reservation list". Note that I'm talking about your home network/LAN, not ISP configuration settings.

Static IPs (Again: Home LAN) are assigned on the device themselves, DHCP reservations are assigned by the router.

If the former, be sure you know what you're doing because if you statically allocate two devices the same IP, you'll have a bad day. If your DHCP server allocates an IP you've statically assigned, you'll have a bad day.

When it comes to your home LAN, there's generally zero need to use static IP addresses, stick to DHCP.