You might look into an extender that uses your home's electrical wiring. It consists of at least two components: the first plugs into a wall jack to which your router is then connected. The second plugs into a wall jack in the room where your computer is located, which then in turn is connected to this jack.
By the way, the last time I checked, Best Buy had a restocking charge on computers, TV's and related components. If you are contemplating returning an item, check before you buy.
On a Mac since 1984.
Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.
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