unable to access webgui remotely using ddns

[hescominsoon]

I have a rule setup that is from my current ip any access is allowed to the system..so shell, webgui..everything.  This rule is et so ONLY this p address has this access.  However when i try to use my hes****.ddns.net opnsense will not allow the access.  I have checked that the ip i have entered and the current ddns address resolve to the same ip.  I also have other firewalls that work fine with this ddns.net dynamic address.  it is the sole deployed opnsense that cannot seem to get it right.  Any ideas as to why this is?

[Bunch]

Have you added ddns in System: Settings: Administration: Alternate Hostnames?

[hescominsoon]

no..didn't know that was required..did i miss it in the documentation?