How-To
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What Is DHCP?

Understand how home routers automatically assign network settings to devices.

Quick Answer

DHCP automatically provides local IP addresses and related network settings so devices can join without manual addressing.

Step by Step

  1. Determine whether the problem affects one device or every device on the network.
  2. DHCP automatically provides local IP addresses and related network settings so devices can join without manual addressing.
  3. Change one setting or component at a time and test again.
  4. Record existing router/network settings before changing passwords, DNS, addressing, or advanced configuration.

If That Doesn't Work

  • Router menus, indicator lights, and terminology vary by manufacturer and internet provider.
  • Avoid factory-resetting a modem/router unless you know how it is provisioned and have the information needed to restore the connection.