Symptoms
If you are on a Mac or iOS device, you may be presented with a "403: Forbidden" error, as shown in the screenshot below, after you enter your eID and password when signing in on CAS.
Environment
macOS
iOS
Solution
You should check and make sure that your time zone/clock settings are set automatically on your device:
- iOS:
- Navigate to Settings > General > Date & Time and make sure Set Automatically is toggled on.
- MacOS:
- Navigate to the Apple Menu > System Settings > General (in the sidebar) > Date & Time and turn on Set time and date automatically.
Cause
Your time zone/clock settings on your device do not match the current time.
Outcome
You will not encounter the error anymore and will be able to successfully sign in.