Check the router label for the default gateway or IP address
Open Command Prompt or Terminal and run `ipconfig` or `ifconfig`
Look for the Default Gateway entry
On Windows, open Network and Internet settings and view the active connection details
On macOS, open Network settings and check the router field
On Linux, use `ip route` and look for the default route
On a phone, open Wi-Fi details for the connected network
Access the router admin page using the default gateway IP
Use the router manufacturer’s documentation if needed