Error: NSURLErrorDomain -1200

Symptoms

When you attempt to authenticate with the DUO Mobile application on your iPhone you receive the error message "Account Error. Something unexpected happened. Please contact your helpdesk. NSURLErrorDomain -1200 (code may vary)."

Image

Environment

iOS, DUO Mobile

Solution

Switch to a different WiFi network or turn off your iPhone's WiFi to force your device to use cellular data and try to log in again.

Cause

NSURL is a legacy service on iOS devices and can prevent Duo Mobile from connecting to a network properly.

Outcome

Disabling WiFi, or connecting to a different WiFi network, will allow you to successfully authenticate within the DUO Mobile application.

Solution Properties

Keywords
NSURL Mobile iOS DUO
Solution ID
240617093809833
Last Modified Date
08/25/2025 09:04:21 AM
Taxonomy
  • Access and Identity Management > DUO Two-factor Authentication
Collections
  • IT Professionals
  • Technology Services
  • VCU (Auth)
  • VCU (Public)
Views
0