An access point device, APD , for use with an extender access point device, EAPD , and for establishing a backhaul connection to the EAPD, the APD comprising: a memory storing one or more computer-readable instructions ; a processor configured to execute the one or more computer-readable instructions to perform one or more operations, the one or more operations comprising: establishing an initial fronthaul connection to the EAPD over a fronthaul service set identifier, SSSID, as part of a Wi-Fi protected setup, WPS, operation the APD is characterised by sending an initial backhaul configuration with a backhaul SSID and one or more credentials to the EAPD; initializing the backhaul connection with the EAPD on a first channel of a plurality of channels based on the initial backhaul configuration with the backhaul SSID and the one or more credentials; determining whether the connection with the EAPD on the first channel is established; and in response to the backhaul connection with the EAPD not being established: performing a dynamic channel selection function to initialize the backhaul connection with the EAPD on a second channel of the plurality of channels; and establishing the backhaul connection with the EAPD on the second channel. a memory storing one or more computer-readable instructions ; a processor configured to execute the one or more computer-readable instructions to perform one or more operations, the one or more operations comprising: establishing an initial fronthaul connection to the EAPD over a fronthaul service set identifier, SSSID, as part of a Wi-Fi protected setup, WPS, operation the APD is characterised by sending an initial backhaul configuration with a backhaul SSID and one or more credentials to the EAPD; initializing the backhaul connection with the EAPD on a first channel of a plurality of channels based on the initial backhaul configuration with the backhaul SSID and the one or more credentials; determining whether the connection with the EAPD on the first channel is established; and in response to the backhaul connection with the EAPD not being established: performing a dynamic channel selection function to initialize the backhaul connection with the EAPD on a second channel of the plurality of channels; and establishing the backhaul connection with the EAPD on the second channel. establishing an initial fronthaul connection to the EAPD over a fronthaul service set identifier, SSSID, as part of a Wi-Fi protected setup, WPS, operation the APD is characterised by sending an initial backhaul configuration with a backhaul SSID and one or more credentials to the EAPD; initializing the backhaul connection with the EAPD on a first channel of a plurality of channels based on the initial backhaul configuration with the backhaul SSID and the one or more credentials; determining whether the connection with the EAPD on the first channel is established; and in response to the backhaul connection with the EAPD not being established: performing a dynamic channel selection function to initialize the backhaul connection with the EAPD on a second channel of the plurality of channels; and establishing the backhaul connection with the EAPD on the second channel. performing a dynamic channel selection function to initialize the backhaul connection with the EAPD on a second channel of the plurality of channels; and establishing the backhaul connection with the EAPD on the second channel. <EOS>