I am assuming you are not using a WLAN controller and when you talk about using APs, you're talking about using FAT APs (not requiring a controller). If that is the case, the ISP will probably hand you off an LC SM connection. You will need the correct optical transceiver to do this. I am betting the ISP can provide a generic transceiver to do this... It should work in the C2G just fine. I assuming NAT and routing will be happening upstreaming and you are just dealing with a L2 connection at this point.