Until yesterday, satisfied ...: /

I have this adapter since December 2012 at (almost permanent) use. Until yesterday I was thoroughly satisfied and everything worked smoothly.
Then popped it yesterday suddenly and my house was in darkness ... Startled, I jumped up and looked out the window. When neighbors lights were on! So power was gone only with me! I desperately upset and groped in the dark for my phone. By the dim glow of the screen I found my way to the closet, where my flashlight otherwise bored.
Through their support it I crept then, like a burglar to the fuse box and was surprised that it had "thrown the FI".
"How can I now firmly at the top, which was the reason for this?" I thought to myself and was afraid that if I take out a backup to the other that it would be of course again the last ...
... And paralyzed the Cinema-assurance. Turned the FI ON-position and - wonder of wonders! It was light!
"YAY!" I thought so ... "Great ... now I can make the whole electronics as below and take them one by one from the network until I find the cause." But again I was lucky and caught the culprit immediately.

The part has been working two years without problems and that pretty well ... So I give 4 stars. Nevertheless, a pity. Have other (newer) from TP-Link (PA4010?) Tried and simply do not their service without interruption. Unfortunately.

I hope that I get again such as the adapter from the kit somewhere ...