How to optimize a Wi-Fi network for smart home and IoT devices?

Internet of Things devices and smart home elements impose specific requirements on the wireless network that often differ from the needs of regular PCs and smartphones. Most sensors, smart plugs, light bulbs, and security cameras operate on the 2.4 GHz frequency due to greater coverage range and the signal's ability to pass through walls. However, this band is extremely congested with interference from neighboring networks and household appliances, leading to a loss of connection with the gadgets.

The first step towards stable smart home performance is the proper organization of the 2.4 GHz band. Since many budget IoT devices simply cannot operate on the 5 GHz frequency, it is necessary to fix the channel width at 20 MHz. Using a width of 40 MHz in an apartment building creates colossal interference and causes sensors to constantly drop the network.

The second important aspect is traffic isolation and segmentation. It is recommended to move all smart home devices to a separate guest or isolated network. This will not only increase the overall security of the home network, but also close potential vulnerabilities of cheap Chinese gadgets from attackers trying to gain access to your main data storage.

By following these rules, you can ensure that all smart home elements respond instantly, and you will forget about problems with dropping motion sensors and lost lighting scenarios.