static ip behind firewall.

ok when I first got my AT&T router I was able to set my printer with a static IP because it doesn't play well with DHCP.

it seemed straight forward at that time. didn't seem to be too hard. and I have set stuff like this up before.

there was a recent update to my router that reset EVERYTHING.. lost my router name and passwords for wifi, lost all my configurations so I am rebuilding things.

however I can't seem to figure out how to set the static ip for my printer anymore.