Hi guys. Any tips for adding a second S3 miner on the same router?

I can get to LuCI - Lua Configuration Interface @ 192.168.1.99 but then it craps out on me. The first ant is working fine on DHCP 192.168.0.x

Not sure why I can't connect to second one. I tried asking on the support thread but they are more concerned with british people loosing battles and girl with dirty blonde hair at the moment.