I wasn't in a hurry at first to install it, and it didn't link with the corresponding router. I called AT&T and they walked me through the troubleshooting and determined the extender was broke. It was apparently a used device, and no attempt was made to help exchange the product when I reached out. No return is allowed now. Any reputable seller would stand behind their product even if it had slipped past the 30 day point when I had tried everyone from the manufacturer to AT&T who sells them, and I have service through. Avoid this seller if you need anything, because they won't even bother replying to attempt to help out. That's nearly $300 down the drain