I'm currently using 3 delivery options - ethernet, wireless and Netgear Powerline.
For all the right reasons ethernet is the first choice, but I've found Powerline to be a great solution also. All the theorists who argue that Powerline puts noise in the line that negatively impacts audio performance are the ones that haven't tried it, I've had no problems with it and can thoroughly recommend it.
I bought Netgear refurbs from EBay.