Multi-network playback devices with network configuration parameter sharing

A playback device includes programming for connecting to a first wireless local area network (WLAN) and storing a first set of network configuration parameters including an identifier of the first WLAN and a first security parameter for the first WLAN. The functions also include disconnecting from the first WLAN, receiving a second set of network configuration parameters including an identifier of a second WLAN and a second security parameter for the second WLAN, and storing the second set of network configuration parameters. The functions also include reconnecting to the first WLAN using the stored first set of network configuration parameters and, after reconnecting to the first WLAN, transmitting, absent user request, the second set of network configuration parameters to at least one other playback device that is connected to the first WLAN for storage on the at least one other playback device that is connected to the first WLAN.