We have an app / IIS server that runs on a Windows Server 2016 machine that we are able to access the app's functionality from within the VM(http://localhost) but we are not able to access the app from an external machine i.e. http://hostnameofserver.
Windows firewall is turned off, can ping server but cannot telnet to port 80. No recent updates were installed or changes to network configuration.
Are there any other obvious places / techniques I can check / perform to troubleshoot this further?
Thank you!