Nowadays, we rely on our Wi-Fi more than ever. From working at home to streaming entertainment, the reliance we place on broadband means we need it to be reliable as often as possible.

Struggling with bad connectivity is a major frustration. Even if you have the best broadband package, it’s possible to experience poor connectivity for a wide range of reasons. One such cause of poor connectivity is the appliances in the home, which can cause interference. Here, we look through some of the most common causes of interference and how you can avoid losing your signal.

How Do Home Appliances Impact Your Wi-Fi Signal?

Wi-Fi in this instance refers to the connection from your device to your Wi-Fi router and not your broadband speed. Here, the connection works similarly to how we tune in to the radio, utilising frequencies to pass data between devices.

However, many home appliances also use radio waves for a range of purposes, or simply produce such frequencies as a result of their activity. When these frequencies collide, their data can be lost, which causes the signal to slow or drop altogether.

Below, we’ve listed some of the most common culprits when it comes to Wi-Fi interference.


One of the most common causes of Wi-Fi interference in the home is the microwave. This is common because both Wi-Fi routers and microwaves use the same frequency. While microwaves are often leak-proof, the reality is that they often emit some of their rays, which can cause interference to nearby Wi-Fi signals.

If your microwave causes significant internet drops while active, it might be because it’s leaking quite a lot of emissions. If it’s an old appliance, consider replacing it with a new one. Alternatively, move any vital components, such as the Wi-Fi router, away from the area, so it doesn’t cause widespread interference.

A stainless steel microwave in a modern kitchen


Generally, modern TVs shouldn’t be impacting your home Wi-Fi strength, beyond using the internet for their functions (such as watching Netflix), which can cause slower speeds for other devices. However, TVs can impact your Wi-Fi signal if the router is placed near to your system.

This point applies to a range of metallic and electrical devices – Wi-Fi signals can struggle to pass through things like your TV. If your router is placed behind your television and you’re noticing connectivity issues, consider changing your router’s location. 

Baby Monitors

One of the most famous Wi-Fi disruptors is the humble baby monitor. Many of these monitors use frequencies that can be the same as Wi-Fi routers, which can cause some serious disruption for both your internet connection and the monitors themselves.

Thankfully, many steps have been taken in recent years, and now, the majority of baby monitors can operate at different frequencies. You can also use baby monitors that work over Wi-Fi, although this might take up some of your broadband.


Don’t worry, turning your living room light on won’t impact your Wi-Fi. The biggest culprit here is LED Christmas lights or anything similar. In this instance, the wires can generate a small amount of electromagnetic radiation which can cause interference.

The simple fix here is to keep lights away from the router and, if possible, out of the path between your main devices and the router.

multi-coloured  Christmas lights


The problem with fridges is something of a combination between that caused by lights, microwaves and TVs. Both what the refrigerator is made of and how it operates can adversely impact your Wi-Fi signal.

Unfortunately, this is an issue that is hard to fix, as the fridge is a significant appliance in the home! The best option is to reposition your router to minimise its interference.

How to Improve Your Home Wi-Fi Signal

As mentioned in this article, if you don’t want to change the devices and routers you’re currently using, the best way to improve your signal is by optimally positioning your router. Ideally, you should place your router in a central location in a high place, such as on a bookshelf, and away from other electronics. For your essential devices, you can also look at creating a wired connection with an ethernet cable, to ensure there’s no interference.

If you live in a large property and your signal struggles to reach every room, consider a network booster. Our professional team can supply and install the perfect solution for your property, ensuring a great connection in every space!


Miss. Claire White
W. Why Media