- Knowledge Base
- Help Guides
- 2-Factor Authentication
- Troubleshooting
- Enable notifications for the DUO app
- Refreshing the DUO app
- Checking internet connection
- Knowledge Base
- Help Guides
- 2-Factor Authentication
- Troubleshooting
- Restrictions in iOS 12 or newer
- Restrictions in iOS 11 or older
- Restrictions in macOS 10.15 or higher