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Not as reliable as the dLAN 200 AVplus
on 16 August 2012
I've been using three Devolo dLAN 200 AVplus Home Plugs in my house for over a year now and they have been 100% reliable. Unfortunately I can't say the same for the dLAN 500. Even though my dLAN 500 is plugged into the same power socket as previously used by one of my dLAN 200's, the 500 intermittently loses its connection with the rest of my Home Plug network. It only appears to do this when coming out of power save mode. If the 500 is prevented from going into power save mode by connecting it to a computer or other device that doesn't ever power down its Ethernet socket (such as a Sky HD box) then everything is fine; the 500 reliably keeps its connection with the rest of the Home Plug network. But if the 500 is allowed to "go to sleep", then sooner or later when it wakes from its sleep it won't be able to connect to the Home Plug network and the only way to make it work again is to unplug it, wait a few seconds and plug it back in again.
I thought my dLAN 500 might just be faulty, so I returned the first one I bought to Amazon and requested a new one be sent. Unfortunately the new one behaves in exactly the same way and so this leads me to believe that dLAN 500's are just not as reliable as dLAN 200's - or at least are much fussier about getting a really good connection with the other Home Plugs in your network. I would point out that I live in a modern house with good quality electrical cabling, so if the 500's are indeed much more fussy about the quality of the electrical cabling they work over, I wonder how they would operate in an older house with lower quality cabling?
So based purely on my own experience of using dLAN 200 and dLAN 500 Home Plugs, my advice would be that if reliability is important to you, I would only buy dLAN 500's if their extra speed is vitally important to you, or you must have the extra Ethernet sockets the AVtriple provides. Otherwise I'd just go for the dLAN 200, which seems to be rock solid in its reliability.