Have no fear! The functionality is still there if you download Airport utility 5.6. Apparently this $%&^#% version 6 is only a shell for a subset of the features... I hate when apple over-simplifies. I, too, use the dyndns service with my airport extreme... and was shocked to see it gone when I update... I immediately searched for this issue and found your post... then read on this forum and saw that there's a 5.6 version... which I downloaded and discovered that the dynamic global host is still there luckily. Pheeew.... BOOO APPLE FOR TREATING US LIKE INCAPABLE IDIOTS!
Whaaa?
It looks like the ability to update my IP address from the router is gone, it used to be called "Dynamic Global Hostname" but it appears to have been removed from the network config.
I used to use DynDNS for this, but not using their scripts run on a PC, but updated directly from the AX
http://dyn.com/support/airport-time-capsule-with-dynamic-dns/
Boo for removing features![]()