At home I use Devolo Ethernet-over-Poweline devices for streaming media around the place. Until now I've only have two devices (both 200 AVs from a starter pack), but in a little network shake-up owning to a flakey router, I now have three (the third device is a 200 AVEasy).
I'd expected installing of the new unit to be plug-n-play as the installation of the other units was ridiculously easy. In fact it's not totally as seamless.
To cut the story short, here's the steps you need to take if you're going to run Devolo 200 AV and Devolo 200 AVEasy units together on your network:
- Connect an ethernet cable directly from your Windows machine to the 200 AV devices and install the new firmware, since the firmware on the 200 AVEasy units is not backwardly compatible with the 200 AV. The (Windows-only) firmware is here: http://www.devolo.co.uk/uk_EN/produkte/dLAN/dn-9-dlan200avdesksk.html
- Reconfigure each unit to share the same network key, don't use the 200 AVEasy's single button security, because the 200 AV doesn't support it.
And away you go. I haven't had time to see if the new firmware improves transfer rates, but so far I like that my network is relatively easily extended (at least compared to drilling holes in walls for proper Ethernet cables).