ORBI RBR50 Drops out

[evans_pj]

I have an Orbi RBR 50 plugged into a modem and a satellite Orbi RBR50 in another room, the satellite Orbi is connected to a smart TV and there wouldn't be an hour go by without the Orbi dropping out and then connecting back after 30 seconds.
What can I do to the ORBI system to make the satellite connection more stable

[michaelkenward]

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@evans_pj wrote:

I have an Orbi RBR 50 plugged into a modem ....

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What is that  modem?

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the satellite Orbi is connected to a smart TV

It helps to think of it the other way round. The smart TV is connected to the satellite.

How? Wired or WiFi?