WIZ750SR Cannot be found by configuration tool anymore

4 days ago I successfully connected my WIZ750SR to my laptop and configured it to UDP mode using the configuration tool. However when I tried to configure it again today, it cannot be found by the configuration tool. It also does not respond to pings.

I did not change my laptops settings (IP, subnet mask, gateway). The power and ethernet connection is good (red power led is on and rj45 leds are flashing).

How can I fix this?

Best regards,


Is the Configuration tool showing the device MAC address you’re using when searching for devices?

No it shows 0 devices found for UDP Broadcast and cant establish a connection via TCP

Can you try again after updating the firmware?

How can I update the firmware without being able to connect it to the configuration tool?