If automatic updates fail, you may need to perform a manual flash: What Is Firmware? Types And Examples - Fortinet

Connect your computer or smartphone to the router's network and enter the gateway IP address (commonly or 192.168.0.1 ) into a web browser. 2. Check for Automatic Updates Many modern routers include an "Auto-Update" feature. Navigate to System Settings or Advanced > Management . Look for a Firmware Update or Software Upgrade tab.

Manufacturers often release updates to fix bugs that cause slow speeds or connection drops.