A reliable WiFi signal is as crucial as electricity nowadays. However, you might be surprised to discover that some everyday objects and appliances in your home could be silently sabotaging your internet connection.
If you’ve ever wondered why your signal drops unexpectedly or why certain rooms have a weaker connection, this list will help you pinpoint the culprits.
1. Microwave Ovens
Microwave ovens operate at a frequency similar to that of most WiFi routers: 2.4 GHz. This overlap can cause interference, disrupting your internet connection. Microwaves emit a type of electromagnetic radiation that can interfere with WiFi signals, especially if the oven is older or not well-shielded. (ref)
To mitigate this issue, try to place your router as far away from the microwave as possible. If that’s not an option, consider using the 5 GHz band for your WiFi, which is less likely to experience interference from kitchen appliances.
Newer routers often offer dual-band or tri-band options, allowing you to switch to a less congested frequency.
2. Baby Monitors
Baby monitors, especially those that use video, operate on the 2.4 GHz frequency band, just like many routers. The signals from the baby monitor can clash with your WiFi, causing drops in internet speed or connectivity issues. (ref)
If you have a baby monitor and are experiencing WiFi problems, consider upgrading to a monitor that operates on a different frequency. Alternatively, try moving the router or the baby monitor to different locations to minimize their overlap.
Ensuring that they are not placed in direct line of sight can also help reduce interference.
3. Cordless Phones
Cordless phones are another common household item that operates at 2.4 GHz, leading to potential conflicts with your router. When you’re on a call, you might notice slower internet speeds or dropped connections.
To avoid this, you could switch to a cordless phone that operates on a different frequency, such as 1.9 GHz DECT (Digital Enhanced Cordless Telecommunications). Alternatively, try to keep your router and cordless phone base station as far apart as possible, and ensure that your router is positioned in a central location for optimal coverage.
4. Bluetooth Devices
Bluetooth devices, including speakers, headphones, and keyboards, can interfere with your WiFi signal because of the same 2.4 GHz band. This can lead to signal interference, especially if multiple Bluetooth devices are in use simultaneously.
One way to mitigate this issue is to use the 5 GHz band for your WiFi network, if your router supports it. Additionally, try to limit the number of active Bluetooth devices in close proximity to your router and turn off Bluetooth on devices when not in use to reduce potential interference.
5. Refrigerators & Other Large Appliances
Large appliances like refrigerators, washing machines, and dishwashers can obstruct your WiFi signal due to their size and the materials they are made from. These appliances often contain metal components that can block or reflect WiFi signals, leading to poor connectivity in rooms adjacent to the kitchen or laundry area. (ref)
To combat this, avoid placing your router near large appliances. Instead, position it in a central, elevated location to maximize signal distribution throughout your home. Additionally, using WiFi extenders or mesh networks can help overcome signal obstructions caused by these bulky appliances.
6. Fish Tanks
Believe it or not, even fish tanks can interfere with your WiFi signal. Water is highly effective at absorbing radio waves, and a large fish tank placed between your router and a connected device can significantly weaken the signal. This is especially problematic in homes with multiple or large aquariums. (ref)
To avoid this issue, ensure your router is not placed near a fish tank. Ideally, place it in an open, central location where it has a clear path to all areas of your home. If relocation isn’t feasible, consider using a mesh network to enhance signal strength around obstacles.
7. Mirrors
The metal backing on most mirrors can reflect WiFi signals, causing interference and reducing the strength and coverage of your network. This is particularly noticeable if you have large mirrors or mirrored walls.
To minimize this effect, avoid placing your router near large mirrors. If mirrors are unavoidable, try repositioning them or the router to find a configuration that maintains a strong signal.
Using WiFi extenders can also help ensure consistent coverage throughout your home.
8. TVs & Entertainment Systems
Televisions and entertainment systems, including gaming consoles and streaming devices, can generate electromagnetic interference, and their large metal casings can obstruct signal transmission. Additionally, if your router is located behind or near these devices, the signal can be significantly weakened.
To improve your WiFi performance, try to place your router in a location away from your TV and entertainment system. Ensure the router is elevated and not enclosed within a cabinet or behind large objects.
If possible, connect your entertainment devices directly to the router using Ethernet cables to reduce wireless congestion.
9. Walls & Floors
Thick walls, especially those made of concrete or brick, and floors with metal reinforcements can block or weaken the signal as it tries to pass through. Even drywall and wooden floors can pose some level of interference.
To enhance your WiFi coverage, position your router in a central, open area of your home. Consider using mesh WiFi systems or additional access points to ensure strong connectivity throughout.
If you live in a multi-story home, placing the router on the middle floor can help distribute the signal more evenly.
10. Christmas Lights & Other Decorative Lights
Seasonal decorations like Christmas lights, particularly those that are LED, can emit electromagnetic interference that disrupts your WiFi connection. This interference can be more noticeable if you have extensive decorations or if they are placed near your router.
To reduce this issue, try to keep decorative lights away from your router and main WiFi pathways. If you notice significant interference, consider using less disruptive lighting options or setting up your decorations in a manner that minimizes their impact on your internet connection.
Many everyday objects and appliances can interfere with your WiFi signal, leading to frustrating connectivity issues. By identifying and addressing these potential disruptors, you can enjoy a more reliable and faster internet connection.
Proper router placement and utilizing modern technology like dual-band or mesh networks can greatly enhance your WiFi experience.
Davin is a jack-of-all-trades but has professional training and experience in various home and garden subjects. He leans on other experts when needed and edits and fact-checks all articles.