Set any Web Content restrictions to Unrestricted access.Navigate to Screen Time > Preferences > Content & Privacy.Uncheck Limit Adult Content to completely disable content restrictions.Go to Settings > General > Restrictions > Websites.Note that if you are opening Screen Time for the first time and haven't set up the feature, you will be prompted to set up the phone either for yourself or a child and will have the option to set a passcode. This will allow the Duo Prompt to display even if content restrictions are enabled. If you do not want to fully disable content restrictions, you can allow within the Content Restrictions page on the iOS device.Uncheck Limit Adult Websites to completely disable content restrictions.Navigate to Settings > Screen Time > Content & Privacy Restrictions > Content Restrictions > Web Content.The instructions are described below for different versions of iOS or macOS. Disable content restrictions on the device.If you have an MDM on the device, such as JAMF, please check to determine if the MDM settings could be preventing the Duo Prompt from displaying.Make sure that JavaScript is enabled in Safari on your macOS or iOS device.Logging in with Duo requires that JavaScript is enabled