Hello, I'm a computer programer, in my house I have a gas, 3 raspberry pi's, several computers, TED, VoiP, switch, several routers, also some smart house stuff, like wink and rachio. Everything is properly configured and it's not a trouble of bad ip.
Everything in my network has fixed numbers, except the computers, but I configured the DHCP to give ip's in a range outside of the fixed ip's, so I should not have an ip conflict.