Method for managing a communication channel used by a plurality of Wi-Fi devices of a Wi-Fi network of the backhaul type in order to implement a backhaul network in said Wi-Fi network, characterised in that the method is executed by a first Wi-Fi device in the plurality and comprises: (a) detecting (401, 501) that a second Wi-Fi device in the plurality connected directly to the first Wi-Fi device has disconnected from an initial channel of an initial sub-band of a frequency band by detecting that no Wi-Fi connection-maintaining frame has been received, on the initial channel, coming from said second Wi-Fi device during a predefined period, said initial channel being used by the plurality of Wi-Fi devices to implement the backhaul network; (b) following this detection, listening (402, 502) on each communication channel of a predefined sub-band, referred to as a backup sub-band of a frequency band, onto which the second Wi-Fi device is able to migrate in order to implement the backhaul network in the event of detection, by the second Wi-Fi device, of a radar signal on the initial channel, the initial and backup sub-bands being different; - in the event of reception by the first Wi-Fi device on a channel (403, 503), referred to as the backup channel, of said backup sub-band, of a frame containing an identifier of the second device: - causing the first Wi-Fi device to migrate (405, 505) to said backup channel, - checking whether the second device has reconnected to the initial channel; - if the second device has reconnected to the initial channel, causing the first Wi-Fi device to migrate to said backup channel; - if not, waiting for a predefined period and repeating said check; and - if not, remaining (404, 409) on said initial channel if said first device determines that the second device has reconnected to the initial channel and, if not, repeating the step b). (a) detecting (401, 501) that a second Wi-Fi device in the plurality connected directly to the first Wi-Fi device has disconnected from an initial channel of an initial sub-band of a frequency band by detecting that no Wi-Fi connection-maintaining frame has been received, on the initial channel, coming from said second Wi-Fi device during a predefined period, said initial channel being used by the plurality of Wi-Fi devices to implement the backhaul network; (b) following this detection, listening (402, 502) on each communication channel of a predefined sub-band, referred to as a backup sub-band of a frequency band, onto which the second Wi-Fi device is able to migrate in order to implement the backhaul network in the event of detection, by the second Wi-Fi device, of a radar signal on the initial channel, the initial and backup sub-bands being different; - in the event of reception by the first Wi-Fi device on a channel (403, 503), referred to as the backup channel, of said backup sub-band, of a frame containing an identifier of the second device: - causing the first Wi-Fi device to migrate (405, 505) to said backup channel, - checking whether the second device has reconnected to the initial channel; - if the second device has reconnected to the initial channel, causing the first Wi-Fi device to migrate to said backup channel; - if not, waiting for a predefined period and repeating said check; and - if not, remaining (404, 409) on said initial channel if said first device determines that the second device has reconnected to the initial channel and, if not, repeating the step b). - causing the first Wi-Fi device to migrate (405, 505) to said backup channel, - checking whether the second device has reconnected to the initial channel; - if the second device has reconnected to the initial channel, causing the first Wi-Fi device to migrate to said backup channel; - if not, waiting for a predefined period and repeating said check; and - if not, remaining (404, 409) on said initial channel if said first device determines that the second device has reconnected to the initial channel and, if not, repeating the step b).