To configure the DIR-850L as a repeater, the device must operate in "Client Mode" (to connect to the main router) and simultaneously in "AP Mode" (to broadcast the extended signal). This configuration is often referred to as a Wireless Distribution System (WDS) or RelayD setup.
Warning: The DIR-850L has two hardware revisions (A1, B1, B2, B3). Repeater Mode is stable, but speed loss is inevitable. A repeater cuts your bandwidth roughly in half because it uses the same radio to listen and talk. dir 850l repeater mode
Before you start, ensure:
You have two choices here: