USING THE FRITZ!POWERLINE 1000E SET
If you want more control over the adapters you will need to download the latest version of the available control software from the official support page as seen above.
Once you do and install the program you will be able to see the available adapters (the ones plugged in the walls of the building you're in).
You can also check the current speed levels and whether or not AVM has released a new firmware version for the adapters.
The firmware update procedure is very fast but you may have to run it twice since the first time we received an error message on both adapters. AVM also requires that the adapter is plugged directly into your computer or router to be able to update its firmware something which i hope they resolve in future products since it does require more time this way.
If you don't need the full "power" of these adapters you can always switch to green mode and use them as 100Mbit/s ones (i really doubt however that people would get these if they didn't plan on using the extra performance).