Wifi booster for PS4 via sky?

Running PS4 on Sky wifi box. Movies buffer. Router is on ground floor and one room across. Which is best booster or something else? or:Running PS4 on

Running PS4 on Sky wifi box. Movies buffer. Router is on ground floor and one room across. Which is best booster or something else?

or:Running PS4 on Sky wifi box. Movies buffer. Router is on ground floor and one room across. Which is best booster or something else?

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