It is best to relocate your modem/router to a more central location in your house. Since your AT&T router is at one far end of your house and the Internet is being used mainly on the opposite side of the house, Wifi connectivity could be weakened to an extent. You may want to consider putting your router at the half mark in terms of distance. Some cabling may need to be done. Also, some walls tend to block Wifi signals depending on the material used in the walling.
I have a 3500 sq foot house that's a one-level, long, ranch style home. Our AT&T router is at one far end of the house and the bedrooms are on the other end (not my design!). I have an extender set up to boost the wifi for us in the bedrooms, but it's not doing to trick. My kids and I all want to stream Netflix or download at the same time it seems, and the signal isn't even strong enough for one device to stream without constantly buffering or losing the signal.
I'm not tech savvy! I've been reading about different routers to replace the one issued by AT&T Uverse and came across the Orbi and Eero mesh systems. I'd never heard of the mesh system before and I'm wondering if this could solve our problem. If you have any other suggestions for a none IT person, I'd love to hear it.
We use a Macbook Pro 2017, a gaming pc, a Dell PC, iPads and a Samsung tablet. I don't know if that matters! Thanks!

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