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6 Reasons Why You Have A Bad Wi-Fi Signal


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WiFi can be very fickle. You may have a strong WiFi signal one moment but the next, you move just a few steps in one direction, and then it drops to one bar. The reason Wi-Fi networks seem so unreliable is because there are many factors that influence their performance.

Physical distance: WiFi routers do not have nearly the same transmitting power as cell towers. Smaller routers may struggle to cover a relatively small apartment with a strong WiFi signal — let alone a complete house. If you want to know the reach of your WiFi router there are many WiFi analyzer apps you can use.

Obstructions: It is possible for wi fi signals to get partially absorbed or even completely blocked because of various obstacles and objects, such as walls, furniture, appliances, and even people. They act as blockers and have an especially negative effect on 5 GHz WiFi networks, because higher frequency signals find it harder to penetrate solid objects nearly as easily as lower frequency signals.

Interference: WiFi signals have the same radio frequency band as actual radios, cell phones, microwave ovens, and many other devices, all of these can cause interference with WiFi signals. Of course, WiFi networks may also interfere with one another; this is very common in apartment buildings and other closely populated areas.

Router capacity: Some computers find it hard to handle casual web browsing while others can render complex 3D objects. Similarly, not all routers are equal in power. A low-end router cannot provide reliable wireless access to the internet to a medium size office with more than 10 employees and several WiFi connected printers, and wireless security cameras.

Bandwidth hoggers: Sometimes, the issue is not your WiFi signal’s strength but rather your internet connection’s capacity. Video chatting or streaming on multiple devices will render even a strong WiFi network weak. For a good experience, it’s best to manage bandwidth hoggers and prevent them from stealing bandwidth from everyone else.

You’re On the Wrong Channel

There are two frequency bands of wireless networks: 2.4 GHz (gigahertz) and 5 GHz. They affect how far and fast the data travels. With a 2.4-GHz network, there’s better range at slower speeds, while a 5-GHz network there’s faster speeds at the cost of signal range.

A 5GHz connection finds it harder to go through walls. A 2.4 GHz connection is better for cities because it has less “noise” or interference.

Cordless phones, microwaves, and other devices also transmit signals at 2.4 GHz so if they are near your router, it can cause a Wi Fi slow down. The same is true if there are lots of devices around you (your neighbours) that run on the same frequency.

Channels are like roads, and the devices are the vehicles on those roads.  If everyone uses the same road it will lead to a traffic jam. But if there are different roads traffic will be less congested. So you should pick the one with the least traffic.

You can check which channels have the most traffic in your network,by using a wireless analyzer app like WiFi Analyzer for PC or NetSpot for Mac.

Then you can change the channel manually by accessing your router’s settings.