OK… this is nitpicky, but I’m just going to put it out there…
A STATIC IP is not the same as a RESERVED IP. And in fact a “reserved IP” is actually not actually, technically, a reserved IP as much as it is a reserved LEASE.
A static IP is assigned at the device. For example you go into Tablo’s network settings (which you can’t do as far as I know) and tell Tablo not to use DHCP. Then you assign it an IP (hopefully not within your DHCP range!) and give it the rest of the pertinent information such as subnet mask, DNS servers, Gateway, etc. This is now static and will not change. It will always have the same IP when it logs onto the network.
By reserving an IP on the router, you’re setting a Lease Reservation . On many DHCP servers… if the DHCP range is too small… AND if the device with a Lease Reservation is not online… if all other DHCP-controlled addresses are in use except for that one Lease Reservation… and some new device comes online, the DHCP server MAY give that new device the IP that is supposed to be reserved. You will probably never see this happen in a home networking environment as the DHCP ranges are usually far wider than the number of devices that will ever connect to the network, but it’s there… trust me.
As I said, this is nitpicky and I really only posted it to inform people of the correct terminology.
Yes… by reserving the IP on the router you are essentially making the IP static in the sense that it will always be the same. But it’s not a static IP in the technical sense.
I will not, however, correct anyone from this point forward for calling it that 
But now you’ll understand a little better what you’re actually doing.
And I’ve done the same thing. I’ve set my Quad with a Lease Reservation within my DHCP range. My range has room for 98 devices. It’s all good.
disclaimer: this was posted for information, NOT to admonish, scold, pick on, belittle, or anything negative.