Uverse problem with RBK763S AX5400

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Corning57 wrote:

Can I just use an extender with a mesh?

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Yes. This is a perfect application for an ordinary WiFi extender:

• There is a device which does not get a strong enough WiFi signal and thus either cannot connect or the connection is erratic.
• The device does not move.  This means that the major benefit of mesh WiFi systems (the ability to roam) is not required.

The concept is to locate a WiFi extender as close as practical to the device, but where it can maintain a connection to the primary WiFi network.  Rather than rebroadcast the primary WiFi name (SSID), create a different SSID for the extender so that the device will discover the unique name and can be connected to it.

Personally, I have had good luck with the Netgear EX3700 (<$30US on Amazon today).  The Fast Lane technology allows the extender to connect to the primary WiFi on the 5G channel and devices to connect to the extender on a 2.4G channel (which can be different from the Orbi 2.4G channel.

WiFi does not penetrate concrete well.  If the wall is too thick, even a WiFi access point immediately on the other side of the wall may not penetrate a strong signal.  That's when I would get out a drill with a concrete bit and bore through the wall to stick an Ethernet cable through.