After upgrading SG135 to FW 9.711-5 our RED 50 connection is lost.

Hello spechto,

Thank you for reaching out to the community, you have delete the red config and add it again, and the check the logs under the /var/logs - red.log !!

Hello and thanks for the very fast response. Is there a tutorial or a documentation how to do this?
Or is it so easy as it looks? Disable the not working device, add a new RED Device with the same parameters?

Thanks Martin

Hello and thanks for the very fast response. Is there a tutorial or a documentation how to do this?
Or is it so easy as it looks? Disable the not working device, add a new RED Device with the same parameters?

Thanks Martin

Well you can refer the following training guide you can delete the existing and add the same: https://community.sophos.com/utm-firewall/f/recommended-reads/122526/sophos-utm-red-remote-ethernet-device-technical-training-guide