A lighting device comprising: a first radio transceiver for connection to at least one further lighting device (LD1, LD3, LD4, LD5) via a first wireless network; a second radio transceiver for connection to a network device via a second wireless network; a memory storing network credential information, the stored network credential information indicating a MAC address assigned for use by the second radio transceiver for communication with the network device via the second wireless network; and a control module configured to: detect that the lighting device is to operate as a bridge between the first and second wireless networks, instead of a further lighting device of said at least one further lighting device (LD1, LD3, LD4, LD5) that has been operating as a bridge between the first and second wireless networks, to allow data to be exchanged between the lighting device and the network device; obtain a MAC address associated with the further lighting device that has been established for use by the further lighting device to communicate with the second wireless network; and modify the network credential information stored in memory such that the MAC address associated with the further lighting device is assigned for use by the second radio transceiver for communication with the network device via the second wireless network, thereby configuring the lighting device to operate as the bridge between the first and second wireless networks to allow data to be exchanged between the at least one further lighting device and the network device via the lighting device operating as the bridge. a first radio transceiver for connection to at least one further lighting device (LD1, LD3, LD4, LD5) via a first wireless network; a second radio transceiver for connection to a network device via a second wireless network; a memory storing network credential information, the stored network credential information indicating a MAC address assigned for use by the second radio transceiver for communication with the network device via the second wireless network; and a control module configured to: detect that the lighting device is to operate as a bridge between the first and second wireless networks, instead of a further lighting device of said at least one further lighting device (LD1, LD3, LD4, LD5) that has been operating as a bridge between the first and second wireless networks, to allow data to be exchanged between the lighting device and the network device; obtain a MAC address associated with the further lighting device that has been established for use by the further lighting device to communicate with the second wireless network; and modify the network credential information stored in memory such that the MAC address associated with the further lighting device is assigned for use by the second radio transceiver for communication with the network device via the second wireless network, thereby configuring the lighting device to operate as the bridge between the first and second wireless networks to allow data to be exchanged between the at least one further lighting device and the network device via the lighting device operating as the bridge. detect that the lighting device is to operate as a bridge between the first and second wireless networks, instead of a further lighting device of said at least one further lighting device (LD1, LD3, LD4, LD5) that has been operating as a bridge between the first and second wireless networks, to allow data to be exchanged between the lighting device and the network device; obtain a MAC address associated with the further lighting device that has been established for use by the further lighting device to communicate with the second wireless network; and modify the network credential information stored in memory such that the MAC address associated with the further lighting device is assigned for use by the second radio transceiver for communication with the network device via the second wireless network, thereby configuring the lighting device to operate as the bridge between the first and second wireless networks to allow data to be exchanged between the at least one further lighting device and the network device via the lighting device operating as the bridge.