I keep getting "Invalid Configuration or bad authorization" when attempting to setup DDNS on the XG Firewall. This is for home use so I don't have a static IP, nor do I want to pay for one. However, I do own a top level domain that I have been forwarding to my local network for years. My DD-WRT router has been able to keep dyndns up-to-date without a problem, however, it seems like Sophos is having issues even though it says it supports dyndns.
Could this possibly be caused because I am using a TLD instead of <whatever>.dyndns.com?
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