Report Builder load failure on WAN-side of firewall

All,

Can anyone shed some light on this problem:

Using the same laptop and credentials I can successfully load Report Builder ONLY from the LAN-side of the firewall. However, if I reconnect using my Sprint AirCard I cannot load Report Builder; I get the now infamous "The remote server returned an error: (401) Unauthorized."

What ports are used by Reporting Service?

Thanks,

Brian

I'm not sure what's up with the AirCard connection, but I think I can explain the WAN/LAN difference. On the LAN side your default Windows credentials are sufficient to access the Report Builder files at http://hostname/reportserver/reportbuilder. On the WAN side, Windows integrated authentication doesn't work, so you get no Report Builder. The reason is that ClickOnce (which is responsible for downloading the application files to the client) cannot prompt for credentials, and it doesn't get any from IE, so if default Windows credentials don't work, you get nothing. The solution is to configure IIS on the report server to allow anonymous access to the virtual directory I mentioned above.

|||Does this work with port 443 also?