Cannot contact the browser-based interface

Narrow down the problem by testing the following:

Ping. Authentication Service does respond to pings, so running ping from your client can tell you whether it is reachable.

Network settings. Use the Appliance Console Menu (see Configure network interface) to verify these are correct.

DNS (if applicable). Look up the Authentication Service DNS name with nslookup or dig.

Routing. Use tracert.exe or traceroute to check the routing.

Firewall. Ports 443 and 8080 should be allowed between your client and Authentication Service.

If you have just changed the Authentication Service host name or have re-generated the Web server SSL certificate, the Web server may stop responding to requests until Authentication Service is restarted.