RPi streamer for dummies

Peer to Peer WiFi.

You can have two (or more) DHCP servers in a network... just so long as the served IP addresses don't overlap. I guess it becomes a race condition to see which server replies first.

How do I know?

Sometimes I'm in a hurry when I open the box and plug the things in. Just like my first power supply didn't need a switch, Tony don't need to read the stinkin' manual... go configure the IP addresses and be done...

Trust me... not necessarily a good idea... but, it will actually work. Actually, in some ways it makes sense, it makes the network more robust.
Maybe that specific HP printer just made a mess of it, but generally speaking I'll stick to one DHCP server per network. Why complicate things for yourself?