I am trying to extend the signal from my apartment a - where my boyfriend lives to apartment c - where I live. There is an apartment in between us and so the signal I get in apartment c is very minimal. I bought an asus-rt-ac66r 200.00 from best buy (they said it was the best). It doesn't give set up instructions to make it a signal repeater. My bf in apartment a has a router/modem combo from his cable company. How do I do this so my son can play on the ps3 network?