You can’t reasonably expect a low-end router to provide reliable wireless access to the internet to a busy office with more than a dozen of employees and several fax machines, WiFi connected printers, and wireless security cameras.

Router capacity: Just like some computers can barely handle casual web browsing and some can render complex 3D objects, not all routers are equally powerful.

Of course, WiFi networks can also interfere with one another, a problem that’s especially common in apartment buildings and other densely populated areas.

Interference: WiFi signals occupy the same radio frequency band of the electromagnetic spectrum as actual radios, cell phones, microwave ovens, walkie talkies, baby monitors, and many other devices, all of which can interfere with WiFi signals.These WiFi blockers have especially negative effect on 5 GHz WiFi networks, because higher frequency signals don’t penetrate solid objects nearly as well as lower frequency signals. Obstructions: WiFi signals can be partially absorbed or even completely blocked by various obstacles and objects, including walls, duct work, furniture, home appliances, and even people.You can determine the reach of your WiFi router using a WiFi analyzer app like NetSpot.

Cheaper routers may even struggle to cover a relatively small apartment with a strong WiFi signal - let alone an entire house.

Physical distance: For obvious technical and safety reasons, WiFi routers don’t have the same transmitting power as cell towers.The seemingly unreliable nature of WiFi networks has everything to do with the fact that there are many factors that influence their performance.

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