The legitimate tool is found on under Tools > Network Management > Access Routers > Multicast Upgrade Tool . However, this generally requires a support contract or partner login.
This signifies a corrupted firmware image file or an interrupted flash. Ensure you have the exact firmware binary for your chip version and retry the process. The legitimate tool is found on under Tools
Open the Windows and navigate to Network and Sharing Center > Change adapter settings . Ensure you have the exact firmware binary for
Some multi-port routers only listen for multicast upgrades on a specific port (usually LAN1 or a dedicated Management port). Try swapping the cable to a different port and restarting the cycle. Try swapping the cable to a different port
The indicator lights on the router will flash during the transfer. Wait for the tool to indicate a successful completion (usually 5–10 minutes).