The installation and configuration guides are available from Johnson Controls / Tyco. Search for "iSTAR Pro Installation and Configuration Guide" and "iSTAR Configuration Utility (ICU) Guide".
Occasionally, iStar servers undergo updates. If your login fails but your internet is fine, wait an hour and try again. Security Tips for Your iStar Login istar proton login
This guide will walk you through everything you need to know about accessing your account, troubleshooting common issues, and keeping your connection secure. What is iStar Proton? The installation and configuration guides are available from