Unit failed after two weeks

Initially they worked very well. The configuration process isn't completely intuitive but the instructions were clear and I had it up and running with no problem. One module was connected to my router upstairs and the other was connected to a wireless access point downstairs. Performance was very good though it will doubtless vary depending on the wiring in your home.

After about two weeks of use, one of the modules failed completely. While the working unit would be warm, the failed unit remained cold. Of the three indicator lights, only the one indicating that it had power would light. I contacted D-Link technical support and they concurred with my diagnosis based on the symptoms I provided. I returned them and replaced them with the kit from another manufacturer.

If I had to guess, I would say that insufficient heat dissipation was the cause of the failure. These units do run warm, not unexpected given that they have to convert 120 volts AC to the required DC voltage and do so in a relatively small package. In my case, the unit that failed was in an area with plenty of space around it and no obstruction to the natural rising of heated air. Based on other reviews I've read around the Web, this appears to be a common problem with this product.