No, Christmas lights won’t slow down your Wi-Fi — but these gadgets will
If you’re thinking about shifting or taking down your Christmas lights because you heard such holiday decorations can slow down your Wi-Fi network, hold it right there. Lots of things cause Wi-Fi issues, but unless your home is absolutely swathed in Christmas lights, (think Griswold), holiday decorations are not one of them. More of this article from PCWorld.com