Why is WiFi range on my new s7edge much less than my old s7edgd?

I damaged my old Samsung s7edgs. Being very happy with it I bought a new s7edge. With my old s7 I could walk around inside and out of my house, up to 30 meters no problem, WiFi stayed connected. The new s7, the WiFi drops out as soon as I leave the same room as the modem. Can anyone help me?
Regards cliff

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