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Does Wi-Fi Travel Through Walls? We Talked With Experts to Find the Answer

Wi-Fi signals can travel through walls, but their strength and speed diminish due to various factors such as the material and thickness of the walls, distance from the router, and potential interference from other electronic devices. Common building materials like drywall and wood pose less obstruction, while concrete, brick, and metal significantly weaken the signal. To improve Wi-Fi performance, one can position the router centrally, use Wi-Fi extenders or mesh systems, switch to the 5 GHz band for less interference, and minimize the number of walls and electronic devices between the router and the connected devices.

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[ https://tech.yahoo.com/articles/does-wi-fi-travel-walls-120000732.html ]