IIS7.5 doesn't respond with FQDN but does via IP

[disturbedone]

I have a W2K8R2 server hosting FIM password registration/reset portals. They work perfectly fine.

The server has 3 IP addresses - one for each of the FIM portals and a 3rd for a basic web page that I'm trying to get working. It's a very simple one page site just using HTTP.

IIS is configured with a binding to the 3rd IP using HTTP only. Internal DNS of the FQDN displays the page perfectly. External DNS points to a public IP which is allowed HTTP/HTTPS to the web server. If I brwose

http://the.public.ip.address

it displays perfectly but if I browse to

http://the.fqdn.of.site

if just gives a blank page.

I've tried various things (some suggestions seen on forums, others just for the h3ll of it):
[ul]
[li]Entered hostname in binding[/li]
[li]iisreset[/li]
[li]restart site[/li]
[li]stopping default site[/li]
[li]changing identity in application pool[/li]
[li]enabling/disabling authentication options[/li]
[/ul]
but nothing makes a difference.

Any ideas?

 

[disturbedone]

After all that it was a typo I'd made

I'd requested the public DNS as 111.333.222.444 instead of 111.222.333.444

**hangs head in shame**