Hi, you need to make sure your router is working first, then follow this instruction to set the extender up via web interface page. http://www.tp-link.com/en/faq-930.html

What's the operating system of your computer? Did you try reinstall the driver?

How did you test the speed? You may refer to this: http://www.tp-link.com/en/faq-709.html

Hmm, I think that's a beta firmware from TP-Link, didn't push to the App.

http://www.tp-link.com/us/support/contact-technical-support#LiveChat-Support

splaquet wrote i just actually had the same thing happen to me, which is why i'm on the forums. i tried to add a USB printer, but the router kept resetting itself. i disabled the USB printer...