All questions related to installations, configurations and maintenance of Advanced Host Monitor (including additional tools such as RMA for Windows, RMA Manager, Web Servie, RCC).
Could you please provide more information:
- HostMonitor version?
- Windows version?
- Service Pack?
- Internet Explorer version?
- HostMonitor started in service or application mode?
Could you try setup "HTTP" test to check the same external server? Does it work?