Application Catalog Available in the Internet

Hi All,

I am trying to configur our Application Catalog to be available on the Internet with HTTPS. The Application Catalog is working OK internally, and I am happy with it. So to make this happens, I have configured the Firewall and NATing to the out SCCM server. But, I couldn't access our Application Catalog from the Internet. It just said The Page can't be displayed.

When I monitored the Firewall, it has allowed the traffic properly to SCCM server, as well as NATed correctly. No traffic has been dropped.

I have a feeling the issue is actually with the IIS not accepting the traffic. So what I have done are:

1. I checked the IIS log files, and I only can find Timer_ConnectionIdel in HTTP Error log.
2. I have setup redirection to from http to https address internally and externally.
3. SSL certificate checked and confirmed OK. I can browse to Application Catalog internally with https and no issues at all.
4. I checked the binding, and it has been configured to All Unassigned IP Address. Our SCCM server just hosts SCCM only.
5. Firewall using Intel Security checked and confirmed has passed the traffic to SCCM server.
6. When I tried to access the Application Catalog from the Internet, it has successfulle redirected to https, but Page can't be displayed.

Am I missing something here? I have spent 2 days in attempt to make this works. Any help will be appreciated. Thank you.