Check the router label for the default WiFi password
Open the router admin page and view the wireless settings
Use a device already connected to the network to view the saved password
On Windows, open the WiFi network properties and show the security key
On macOS, open Keychain Access and find the saved WiFi password
On Android, view the saved network details or share the WiFi from settings
On iPhone, view the saved WiFi password in WiFi settings if supported
Reset the router if you cannot recover the password
Contact the network owner or internet provider for access