Hi Anton L.Z. Thanks for the response. The model number of my device (printed on the device label) is TL-PA7020P(UK) When the powerplug is connected to the router the wifi access speeds on other...

Also, for the avoidance of doubt, when I disconnect the powerplugs from the router the normal fast wifi internet access speeds is restored. Indicating that the powerplugs are the issue.

Hi, I have connected the two adapters to the router and power outlets with the two supplied network cables. When I do this, wifi devices connected to my router suffer a very dramatic slowdown in...