TP-LINK PLC UTILITY

If you want more "control" over the powerline adapters TP-Link has software available for both Windows and MAC owners which you can grab from their official support page as seen above.

From the main screen you can see all connected powerline adapters and the current speed achieved between them.

You can also rename each adapter, turn the activity LEDs on and off, reset the adapters to their factory defaults and check the current firmware version.