Actually, after giving it some more thought, I think I know what may be causing your problem. Do you have "clone MAC address" enabled at both the router and the bridge? It only needs to be enabled at the router, so turn it off at the bridge. You would use it in AP mode, but it's likely causing the conflict in bridge mode, since your router can handle the function when interfacing the WAN, when you ISP requires it. Once you disable it on the bridge, and do a reboot of both the router and bridge, you should see all of the individual IPs show up with the correct MAC address in the status screen of your 825.