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How To Boost Xfinity WiFi Signal

Last Updated Dec 9, 2022

Comcast Xfinity is the largest cable internet service provider in the United States, with over 31 million residential customers in the middle of 2021. Even though they are the biggest doesn’t always mean they are the fastest or the best. It’s possible to improve your service and WiFi signal.

The WiFi internet used by your home router is nothing more than a powerful radio antenna. Your home network router is the broadcast station that sends the internet over radio waves to be available to devices around your house. If you have a bigger home, how can you boost the Xfinity WiFi Signal?

How to Boost Xfinity WiFi Signal?

Like many other electronics, your internet router and modem can get bugged up sometimes. Many solutions you can take to solve WiFi signals are easy to implement and can be done by anyone, even if you lack modern technological savvy.

  1. Power cycle your modem and router
  2. Choose an ideal location for your WiFi router
  3. Minimize WiFi interference
  4. Upgrade your router and modem’s firmware
  5. Add a WiFi extender
  6. Make sure you’re using the correct WiFi network for your needs
  7. Connect devices that use a lot of bandwidth directly with an ethernet cable

Even though it might seem like Xfinity’s internet is bad, you can follow these steps to improve it.

Power Cycle You Modem and Router

Power cycling is just another term for pulling the power from a device and putting the power back on to force a guaranteed restart for the device. A power cycle forces this restart and can fix many simple tech problems.

  1. Unplug the power from your router
  2. Unplug the power from your modem
  3. Wait 2 minutes
  4. Plug the power back into your modem
  5. Wait 5 minutes or until all the lights on your router are green
  6. Plug the power back into your router
  7. Wait 5 minutes or until all the lights are steady on your router
  8. Test your Internet signal

Some routers and modems are combined into one device. If you have a combination router-modem, you can just follow the directions and reset the single device without having to do two.

Choose an Ideal Location for Your WiFi Router

Many people have WiFi routers near their computer or television on a low shelf. The antennas in your WiFi router work better the higher they are installed. This way, they can broadcast above most large appliances and obstructions that can cause radio interference. 

It is also important to ensure your WiFi router is placed centrally in your home. If you have your router at one end of your house, you may find that the other end has poor signal quality. 

A centrally located router will broadcast its signal in a sphere from its location—the more central the location, the more area the sphere can cover.

Minimize WiFi Interference

There are a lot of things that can interfere with your WiFi router’s signal. The fewer obstructions between your device and the router, the better the signal you will have and the better your experience with your internet connection.

Some of the things to avoid interference are: 

  • Large appliances (such as refrigerators or electric stoves/ovens)
  • Large metal objects or panels
  • Microwave ovens
  • Thick concrete walls
  • Large electronics 
  • Bluetooth devices

These aren’t all of the devices that can cause WiFi signal interference, but they are some of the largest culprits of signal degradation in your home network.

Upgrade Your Router and Modem’s Firmware

It is important to check often (at least once a month) for firmware and software updates that will improve the performance of your WiFi router. 

Firmware updates are like updates to the router’s operating system. They can improve the performance of your WiFi signal by updating the hardware’s software.

You can usually find the firmware and software updates in the menu settings of your modem and router. It will differ depending on the model of the device you own.

Add a WiFi Extender

A WiFi extender is great for people that determine that their WiFi signal is the problem with their internet. 

A WiFi extender is a relay station for your WiFi network. Your router connects to it wirelessly and sits at the edge of your router’s broadcast range. Then, the WiFi extender broadcasts that WiFi network signal further than the router is capable of. 

It’s also a way to change the broadcast area of your WiFi network without having to move or reinstall your router. 

Many people don’t have the option to move their router to a different location. The WiFi extender would be perfect for this situation.

Connect to the Correct WiFi (2.4 or 5 GHz)

A 2.4 GHz WiFi network can cover a larger area than a 5 GHz. 

The downside to 2.4 GHz is that it is only capable of 50 – 70 Mbps and is subject to being affected by the interference mentioned above. A 5 GHz WiFi network can have faster speeds, but it can’t cover the same area as a 2.4 GHz network. 

Connecting to the network that works best for your situation at any given moment is important.

Use Ethernet Cable for High-Bandwidth Devices

If you have a high-bandwidth device, it is always better to connect it via a hardline ethernet cable. A high-bandwidth device will utilize more bandwidth on your WiFi network. Still, it will not only not take up WiFi bandwidth if connected via an ethernet cable, but it will also be more reliable and faster. 

Ethernet offers faster and more steady, reliable connections than a WiFi signal because ethernet isn’t subject to the obstructions and interference that a WiFi network is.


Trying out some or all of these solutions should boost your WiFi signal whether you are using Xfinity or any other internet service provider. Improving your signal will often improve the reliability and speed of your WiFi internet.