Computer causes internet to slow down to a stop, disconnects

markzonder

Distinguished
Dec 12, 2011
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18,510
I have an Alienware Aurora R3 (Win 7). For a few weeks now I've had issues where I thought it was the wi-fi. The connection speed would slow down frequently and eventually come to a stop. I did a factory restore of the PC - but the same thing happened again, while my macs and ipad and iphone in the same room had no connection issues. So I decided to buy a powerline adapter for the PC - and it worked great for the first few minutes, extremely high connection speed etc., but again, after a short while the connection dies down until it loses the internet connection itself. Now that it's connected to the LAN I also notice that the wi-fi connection of the other computers seems to be extremely messed up, they slow down or don't connect to the internet itself (the wi-fi connection itself is fine, just no internet). I have no idea where to start looking for the cause.