@dme3 Take for example the Canadian. There are a couple more regional sites stating EOL. Like i wrote, even not OpenWRT compatible, you can always use it as an AP - thus less security concerns.

@GA_Polo Thanks for the kind words, you're welcome. We can continue troubleshooting the C6 remote access. That will involve sharing some screenshots of your ISP router port-forwarding settings and a...

It seems to me that in this case the problem is with the remote access to the C6 than the Dynamic DNS resolution.

OK. Good to know that. What if you try to access the WebGUI of the C6 by its public IP address directly (http://<public IP address>:8080) - is it accessible ?

@dme3 While this is an excellent device, it's unlikely a new FW to be released, considering its status: You can still use it as an AP, but it's reasonable to buy a more recent device for a main...

L2TP Passthrough in ALG section is enabled, right ?