I have a 2011 2TB Time Capsule set up as my router in my basement. It covers the whole house just fine. However I currently have all of the hard wired ports full. I am not getting two new devices that require hard wiring. Can I get an Airport Extreme (new or last gen) to "add" ports. My intention is to have the AE on the other side of the basement with the two new devices plugged in. Do I have to connect the TC and the AE together with an ethernet? Can the AE act as a range extender at the same time as having these two additional devices plugged in? Thanks!