For this reason, DFS channels are not immediately available when a router boots. The Channel Availability Check process would take 1-10 minutes depending on the country. And during Channel Availability Check process, 5GHz signal is unavailable for connection. If router assigned with non-DFS channel, it can operate on 5GHz frequency immediately however, if router assigned with DFS channel, according to regulation, Channel Availability Check is required. When support for DFS is enabled, Wi-Fi router detect the channel status and determine to use DFS channel or non-DFS channel when boot. When will my router be assigned to DFS channel? What going to happen? It is legally required Channel Availability Check process to prevent electromagnetic interference the 5 GHz frequency with the radar. The main benefit to use DFS channels is to increase the number of Wi-Fi channels. The DFS channels vary from country to country.
What is DFS (Dynamic Frequency Selection) and how does it work on ASUS router?ĭFS is Dynamic Frequency Selection, which is a function of using 5 GHz Wi-Fi frequencies that are generally reserved for radar, such as military radar, satellite communication, and weather radar.
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