Dynamic Host Configuration Protocol can supply a device with network configuration, including an address and other relevant connection information. It reduces the need to enter each setting manually. Obtaining a lease helps establish local configuration, but it does not prove that every internet resource, DNS lookup or account login will subsequently work from the device.
A practical example
A television joining a home network can receive an address and gateway information automatically. If it cannot obtain suitable configuration, basic connectivity may fail before the player ever reaches its playlist or authentication stage through the household internet connection.
A common misunderstanding
Manually assigning an arbitrary address can conflict with another device or create incorrect routing. Record existing settings and use the network's supported configuration rather than guessing values during troubleshooting.
Related terms
Further reading
Stable technical definition. Editorial approach