Both TL-PA101 and TL-PA201 support encryption, and you can add all your powerline adapters to a private network to protect your powerline network against unauthorized access. To secure you data and get a better network performance, please follow the procedures describe below and configure the utility for your powerline adapters.
We take TL-PA201 for example in this article.
Step 1 Install the powerline adapter hardware, then connect your PC to one of the powerline adapters and run Powerline utility.
Step 2 The Utility will detect and list the other powerline adapters in the same power line network in a few seconds. Click and select the Powerline Ethernet Adapter you wish to change from the list, then click on the Enter Password tab.

Step 3 Enter the device’s password and click OK. (The password can be found on the bottom of the device or packaging).

Step 4 Click Privacy tab, set a new Private Network Name to create your own private network, and then click Set All Devices to add the device with password entered to this network.
Step 5 Click OK on the tip window to continue the configuration.

Step 6 Once the device is added to the private network successfully, the utility will pop up a Information window as below. At this time, your power line network is secured and the other powerline adapters with different Private Network Name won’t detect your devices any more.

If you would like to add another powerline adapter to this private network, please repeat Step 2 to Step 5.
