What is the reason why the router chooses the automatic tunnel?
The advantage of automatic channel selection is that the router can choose the channel with the least interference and the best quality for us to use according to the current environment. For the 2.4GHz band, China has opened the 13 channel for our people to use, but this band is free of authorization, that is, there is no charge, unlike LTE and 5G, which require a lot of money to use. Because WiFi is free, many wireless standard protocols will be applied in this band, such as 2.4GHz band, not only WLAN, but also Bluetooth, zigbee, medical equipment and so on. Therefore, a lot of equipment will be used on the road in the 2.4GHz band, which is already blocked and the interference is also very severe.
When we turn on the router's automatic channel selection, the router will select the best channel in real time according to the internal algorithm in combination with other surrounding wireless devices. This optimal channel has relatively little interference, relatively few devices running on it, and the signal quality is not bad, which can provide a relatively good network experience.
It is worth noting that after the router chooses to automatically select the channel, the selected channel is not fixed. For example, there are five channels today, but due to the increase or disconnection of equipment or other factors tomorrow, it is possible to choose nine or other channels. This is why Xiaoke suggested that the router enable automatic routing.
If it is a fixed channel, which should 2.4g choose?
If it is a fixed channel, then if you want to choose a channel with better signal quality, you can check which channel is better through network signal quality software, such as WiFi Magic Box. With this as a reference, we can choose the best channel. However, there is a problem. After a period of time, this channel is not necessarily the best, and this needs to be re-selected. So it is more troublesome to choose a fixed channel.
Conclusion: The above is my personal opinion. For router channel selection, it is recommended to turn on router automatic selection. The advantage is that the best channel can be selected according to the real-time situation of the surrounding environment. However, the fixed channel will not make the best channel selection according to the real-time changes of the surrounding environment because of its limited fixity. Therefore, it is recommended that the router choose automatic channel selection.