I know that this has been discussed before but this is a slightly different scenario.
I live in a very elongated apartment and the signal is very bad in one end. I have a D-Link 655 (or something close) and I want to extend my wireless network using a Airport Express and a "powerline" (Ethernet over main power cables).
So to make it clear, the D-Link 655 will be used as wifi access point in one end and I want to use the powerline to be able to use the airport express as an extender and repeater in the other end.
Will this work provided the powerline provides a internet connection to the other end of the apartment?
Secondly, if all this works, using the Airport Express as an Airplay unit as well as an extender shouldn't be a problem right?