Your Wi-Fi router is the center of your home’s internet. Many everyday devices can weaken their signal if placed too close together. Common sources of interference include microwaves, baby monitors, cordless phones, and Bluetooth devices.
According to Technowifi.com, these gadgets often use the same 2.4 GHz frequency as many Wi-Fi routers, which can slow connection speeds. For this reason, experts recommend keeping certain devices away from your router. Doing so helps maintain a stronger and more reliable wireless signal throughout your home. Here are 10 devices you should never place near your Wi-Fi router.
Microwave ovens
Microwave ovens are one of the strongest sources of Wi-Fi interference because they operate around 2.45 GHz, almost the same frequency used by 2.4 GHz Wi-Fi networks. When a microwave runs, small amounts of leaked energy can flood the band with noise and overwhelm nearby Wi-Fi signals.
According to ResearchGate, real-world spectrum measurements show that an active microwave sharply reduces Wi-Fi speed and stability. Network engineers, therefore, advise placing routers several feet away from microwaves and relying on 5 GHz Wi-Fi when possible to avoid frequency overlap.
Cordless phones (2.4 GHz models)
Older cordless phones that use the 2.4 GHz band directly compete with Wi-Fi for the same airspace. Tests show these phones can trigger heavy Wi-Fi retransmissions, leading to slower speeds and unreliable connections.
Some models hop across the entire 2.4 GHz range, leaving no clean channel for Wi-Fi. Experts recommend replacing them with DECT 6.0 or 5 GHz phones and keeping any remaining units far from the router.
Bluetooth speakers and headphones
Bluetooth devices also operate in the 2.4 GHz ISM band and use frequency hopping that briefly overlaps all Wi-Fi channels. With just a few devices, the impact is usually minor, but heavy Bluetooth activity can noticeably reduce Wi-Fi throughput.
Keeping Bluetooth audio gear away from the router and shifting bandwidth-intensive Wi-Fi tasks to 5 GHz helps reduce congestion in the crowded 2.4 GHz band.
Baby monitors
Many baby monitors transmit continuously on the same 2.4 GHz spectrum used by Wi-Fi. According to Acrylic, placing these devices near the router can significantly degrade Wi-Fi quality.
Because baby monitors broadcast almost nonstop, they act as constant sources of interference. Placing them farther away or choosing models that use other frequency bands helps protect Wi-Fi performance.
Smart TVs and streaming boxes
Smart TVs and streaming devices can interfere with Wi-Fi when placed directly beside or on top of the router. Their electronics and metal components can block, absorb, or reflect radio waves, weakening the signal spread.
Router placement guides recommend keeping routers in open areas away from large electronics so antennas can radiate signals evenly throughout the home.
Metal objects and cabinets
Metal strongly reflects and absorbs radio signals, making it one of the worst materials for Wi-Fi propagation. Metal cabinets, racks, and shelving can create severe signal loss and dead zones when routers are placed nearby.
Keeping routers out in the open and away from metal surfaces allows both 2.4 GHz and 5 GHz signals to travel more freely.
Refrigerators and large appliances
Large appliances such as refrigerators contain dense metal surfaces that block Wi-Fi signals much like walls. Their motors and compressors can also introduce electrical noise.
ONSITE I.T. advice recommends keeping Wi-Fi equipment away from fridges, washing machines, and similar appliances to prevent weakened coverage.
Aquariums and large water containers
Water absorbs radio waves efficiently, especially at 2.4 GHz and 5 GHz. Large aquariums or water containers can significantly weaken Wi-Fi signals passing through or behind them.
Because water acts like an invisible shield, routers should be positioned away from fish tanks, water heaters, and large containers.
Wireless security cameras
Wireless security cameras can consume substantial Wi-Fi airtime, especially when streaming HD video continuously. Multiple cameras on the same band increase collisions and retransmissions, slowing other devices.
Placing cameras thoughtfully and using separate bands or quality-of-service controls helps prevent them from clogging the network.
Other Wi-Fi routers or extenders
Routers and extenders placed too close together can interfere instead of improving coverage. Overlapping channels create co-channel and adjacent-channel interference, reducing overall speed.
Best practice is to space devices apart and assign non-overlapping channels—such as 1, 6, and 11 on 2.4 GHz—to keep them from competing with each other.
Disclosure: This article was developed with the assistance of AI and was subsequently reviewed, revised, and approved by our editorial team.
Disclaimer – This list is solely the author’s opinion based on research and publicly available information. It is not intended to be professional advice.
20 Odd American Traditions That Confuse the Rest of the World
20 Odd American Traditions That Confuse the Rest of the World
It’s no surprise that cultures worldwide have their own unique customs and traditions, but some of America’s most beloved habits can seem downright strange to outsiders.
Many American traditions may seem odd or even bizarre to people from other countries. Here are twenty of the strangest American traditions that confuse the rest of the world.
