Port 3671 is blocked from any public IP address

[Daniel]

Hello, We also blocked this functionality on LM. We scanned the network and we found nearly 2000 devices with permanently opened KNX port. Unfortunately people are not responsible and anybody now can take control of such project. For LM this is not a problem as we can now use ZeriTier for secure remote connection, also ETS download. Unfortunately SE does not provide this solution yet. From fw 2.6.1 every firmware. package has to be signed by SE, due to this we no longer can provide direct software update for SE customers.
We provided to SE package which will allow you to specify an external IP which will allow the connection. It is now up to them to deliver this to you.