Scenario 1

Users may be presented with a "403: Forbidden" error as shown in the screenshot below:

RESOLUTION:

1. Navigate to Settings > General > Date & Time and make sure "Set Automatically" is toggled on.

Mac OS

1. Navigate to the Apple Menu > System Settings > General (in the sidebar) > Date & Time and turn on "Set time and date automatically."

Scenario 2

Users may be presented with the error "This site can't be reached" and in some other cases may only see a blank screen.

Note: This information can be found at https://help.duo.com/s/article/3710?language=en_US

RESOLUTION:

• Make sure that JavaScript is enabled in Safari on your macOS or iOS device. 
• Disable content restrictions on the device. The instructions are described below for different versions of iOS or macOS.

iOS 12 or Newer

1. Navigate to Settings > Screen Time > Content & Privacy Restrictions > Content Restrictions > Web Content.

2. Uncheck Limit Adult Websites to completely disable content restrictions.

   Note: If you do not want to fully disable restrictions, you can add duosecurity.com at the bottom of the "Allowed Websites Only" list.

iOS 11 or Older

1. Go to Settings > General > Restrictions > Websites.

2. Uncheck Limit Adult Content to disable all content restrictions.

Mac OS 10.15 (Catalina) or Newer

1. Open System Preferences.

2. Navigate to Screen Time > Preferences > Content & Privacy.

3. Set any Web Content restrictions to Unrestricted Access.

   Note: If you do not want to fully disable content restrictions, you can add duosecurity.com in the "Customize" section of the "Allowed Websites Only" option.