I've reached out to Devolo for assistance, but I think these are going to have to be returned
Absolutely useless for my needs.
We moved into a new apartment block that was completed in 2014, they have used good quality cabling throughout.
The apartment is on the first floor and the storage room is on -1, there is about 50-70m of electrical cabling between the rooms and these devices are supposed to be rated for up to 300m. It is all on the same electrical circuit.
The throughput is a whopping 10mbit per second... yes, that's mbit, not mbyte... so about 1-1.2MB... too slow to even stream a 1080p video file, let alone something 4k!
The connection from home office to living room is equally poor, albeit at least usable. I get about 150mbit over a 25m cable run... even their software thinks it should get 600-650mbit and the PCs/router involved can max out a gigabit connection very easily.
Pro
Easy to connect
150 mbit within the same apartment is still usable, even for 4k
Contra
Over small cable run to basement, the speed is utterly useless
