.Firmware is embedded software, installed at the factory on a read-only memory (ROM) chip, which allows the router hardware to implement network and security protocols.Most vendors provide downloadable firmware updates that resolve performance issues, add new features, and increase throughput performance. Look for the firmware update tool in the System section of your router's management console and follow the instructions carefully to ensure that you are installing the correct firmware version. Do not download firmware from a third-party site.