IP conflict - multi devices on network

Hello, here is my problem I get network errors with the assigned ip adress I figured.

I dunno how to set it up, first problem is my ps3 getting network errors and my laptop, how easily can I set this up ? The only option is to assign ip ? Which im not too familiar also..

My modem DSL = Modem Aztech DSL605EU
My router = D-LINK DIR-615

My private network
Laptop = wireless
PS3 = wired
Desktop = wired
1 Tablet
2 Smartphones

My computer skills = average

Thanks