Overview
Users may experience an error when using Duo push on iOS, that states "Error: Something unexpected happened. Please contact your helpdesk. NSURLErrorDomain -1200".
![Click to View Full Image Duo error NSURLErrorDomain](https://support.uidaho.edu/TDPortal/Images/Viewer?fileName=0e044e5a-f8d7-4655-8f3c-0bf0d4387f68-thumb.jpg&beidInt=2)
Resolve NSURLErrorDomain error
This can happen if the iOS device is connected to AirVandal Guest. This can be resolved in two ways:
- Connect the device to a wireless network that has full Internet access, such as Eduroam or AirVandal Gold
- Use the "Enter a Passcode" feature at the Duo prompt in the application
![Click to View Full Image Uploaded Image (Thumbnail)](https://support.uidaho.edu/TDPortal/Images/Viewer?fileName=a5fcdad4-bba5-4282-a6bc-b45f5b965dfe-thumb.jpg&beidInt=2)