This is for others that might have a problem activating.
I was struggling to get my RR2 activated. It would give me a "not activated" error even though the main repeater was visible on the network and I could log in to in. Find repeater in the design tab was successful. I scoured my PC of firewalls and AV SW to no effect. Finally I guessed that maybe it was because my repeater was 3 switches away from my PC. Ran a cable directly to the repeater from the same switch the PC is on and it worked. This is, of course, after I specially added wires to NOT have to run a long ethernet cable through my house.
Phil