I have set up an ISA server to allow remote sites access to the Internet, but only a selection of website. This has been working fine using a ISA server on the main network and setting the proxy on remote site client to this server on port 8080. The remote sites connect back to the network over a VPN WAN link.
We have recently required these sites access to a website which requires a logon, which then goes to a HTTPS page. When it redirects to the HTTPS page the error message says:
The page cannot be displayed
There is a problem with
The rest of the error message page is not displayed.
The page is