Connect airport extreme to xfinity wireless router
I run mavericks on MacBook Pro, Intel Core 2 Duo, 2.66 GHz, Memory: 8 GB and I have the new xfinity wireless mopdem. I'm running an ethernet wire to the aiport extreme but I don't seem to be able to hand off vfrom one wireless router (xfinity) to the other (Extreme) when wanderig about my house. I use airport utility 6.3.2 and I joined the network, named it the same and put the password in, I think. Alas, doesn't seem to work. Any ideas at all?
many thanks!
MacBook Pro (17-inch Early 2009), OS X Mavericks (10.9.3)