Server services reachability

I'm not running PF, but have the same issue. Services are actually reachable from the outside world, yet Reachability always reports that the server is reachable, yet no services available.

I have this issue too. Server Overview is (nearly always) incorrectly showing "no services available" whereas everybody can access all the enabled services on local net and internet.

I'm suspecting that it's an aspect of Network Address Translation that I wasn't aware of: I had assumed that Server would have been smart enough to handle it. Indeed, there have been days when it has shown all the services are reachable - after I have reconfigured something - and then it reverts to incorrectly showing "no services available"

In my case, the fixed IP addresses that we have from BT (our internet provider) are mapped / translated by them from their network to the IP addresses they have given me as the BT Business Hub router states that each particular fixed IP address maps to a single, different "Public IP address". I suppose that's NAT (Network Address Translation) in action. And the website http://whatismyipaddress.com/ shows this "Public IP address" and not the fixed IP address that all the services are actually reachable on.

I wonder if there's anything I can do - like Dynamic DNS client bot - that could get around this? And why aren't more people reporting this? Hmmmm

I should add that since I know that Server requires both a forward and reverse DNS host name record,

nslookup