Friday, April 8, 2022

Extending Wi-Fi @ Home

 

[UPDATED 2022-04-08]
[originally posted 2015-11-24]


Almost everybody is already using Wi-Fi but countless amounts of people want more coverage at home. Maybe your Wi-Fi works great in your living room but not so great once you carry your device to into your kitchen or some other room and suddenly you lose the internet connection.

Many people think that by going out and buying a brand new wireless router and adding it onto their network will solve their Wi-Fi problems. In theory they want to extend the wireless coverage but in actuality, adding a router can cause major havoc to your home network. What you really want to do is add a Wireless Access Point, and NOT a Wireless Router or at least disable the routing DHCP (Dynamic Host Configuration Protocol) features on the new router.

Adding an additional router to your network will cause problems. When you sign up for your internet service your internet service provider company, (whether it be Telus, Bell, Shaw, Rogers etc.) will always provide you with a hardware router and will have one of their technicians install it on premises for you. It is important to only have ONE single router on your home network. It is completely senseless to have more than one router on your small home network. Having more than one router on your home network can potentially cause a network loop and will create internet connectivity problems. The routers will compete with one another to try and hand out IP addresses to devices detected on the network and will cause errors. Some devices won't connect because of IP address conflicts and in some cases, the device may not even get connected to the outside internet. This network loop problem will affect both wired and wireless devices on the network.

There are a couple of solutions to this. If you already went out and bought and installed a router then, the first solution is to disable a feature called "Dynamic Host Configuration Protocol" or "DHCP" or "DHCP Server" within the new router. You would access this by logging into the newly added router and changing it's configuration. Reference your Instruction Manual on how to do this. By turning off the DHCP settings in a router, you are essentially turning the layer-3 network router into a layer-2 network switch. This will alleviate any network conflicts with any existing router. If you want to know about networking, there are actually 7 layers called the Open Systems Interconnection (OSI) Model.

The second solution, if you did not already buy a wireless router, is to just go out and buy a Wireless Access Point. It can be plugged into the network and should work automatically without creating any network problems. You will still need to log into the device and change the Wireless Security Settings to your preferences. Don't leave it at the default state or you could be giving free and open internet access to any Wi-Fi device.

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