I just installed a TP-Link powerline network of 2 adapters on a home network. Everything seemed to be working great. Only 1 Windows 8 computer connected to this network.
The evening after I installed it the owner emailed me that his wifi was very slow. He ran one of the online speed tests & saw that his download speed was between 2-3Mbps. So he unplugged the powerline adapter that was plugged into the router from the wall & said that his speed went up to 45Mbps.
I don't think I have heard of this happening before. Of course he never said that he plugged the adapter back in & the speed dropped again, so I will need to get him to do that.
It just hit me as "What?" This doesn't make any sense. Other than the computer connected with the powerline network was doing updates, Windows, AV, etc., would it make any sense.