Has this issue been resolved? Just upgraded to xFi and I'd like to reserve an IP on my network for my wifi printer.
I just used my printer's wi-fi setup program instead several years ago when I got my first wifi printer. Haven't needed a reserved IP address since.
I just got Xfinity / xFi today. I was able to set up a static IP by logging into the router directly (10.0.0.1). I couldn't find the option in the xFi interface online.