- Enable notifications for the DUO app
- Refreshing the DUO app
- Checking internet connection
- Causes and solutions if you don't receive a code
- Authentication errors/solutions via text or call
- Checking cellular connections
- Losing a phone linked to DUO
- Getting a new phone to add to DUO
- Finding lost phone
- What is a Bypass code
- How do I get a Bypass code
- Locked out of Duo Mobile account
- Restrictions in iOS 12 or newer
- Restrictions in iOS 11 or older
- Restrictions in macOS 10.15 or higher