| Error Message / Issue | Likely Cause | Solution | | :--- | :--- | :--- | | | Typo or Caps Lock is on. | Double-check credentials. If you are copy-pasting the password, ensure no extra spaces are included. Reset password if necessary. | | "Account Locked" | Too many failed login attempts. | Wait 15–30 minutes for the system to auto-unlock, or use the "Forgot Password" feature to reset it immediately. | | "Invalid Site Code" (App) | Incorrect agency code entered. | Verify the code with your supervisor. It is case-sensitive. | | Blank Screen / Loading Loop | Browser cache issues. | Clear your browser cache and cookies. Alternatively, try opening the portal in an "Incognito" or "Private" window. | | GPS Location Error | App permissions disabled. | Go to your phone settings > Apps > iStar > Permissions > Location > Set to "Allow all the time." |
Before attempting to log in, ensure you have the following ready: istar proton login
If logging in via an organization, ensure your Identity Provider (IdP) is correctly configured in the Proton SSO settings . Proton Account: Sign-in | Error Message / Issue | Likely Cause