I highly recommend that the device is plugged directly into the wall-jack vice power strip. I would also take a look at your configuration settings on the two modes the device can transfer. A previous (inferior) signal extender did that, however, I realized that the someone was stealing our WI-FI. Lastly, I suggest that passwords are recorded and changed periodically with any of the free WI-FI apps that list all devices connected to you WI-FI network. Good luck and God Bless