Prizm Behind an SM

Right now we have a kind of demo scenario with an access point and 2 subscribers. Our prizm server is in our office, for now (it will be moving to the location of the AP). We have a VPN to one of the SM locations, which is how our Prizm server is on the network. When discovering these 3 elements, I have no problem getting the 2 subscribers, but it doesn’t find the AP. Does the Prizm server have to be behind an AP on the network or do I just have some routing issues? I hesitate to think it’s a routing issue since I can pick up the other subscriber, which must pass through the AP first. Particulary, I’m curious as to what the Server Route IP Address should be under the Subnet Configuration within Prizm. All of the radios are on the same network Thanks for any help.