MFA-Duo - NSURLErrorDomain -999

This document describes the troubleshooting procedure when experiencing the NSURLErrorDomain -999 message in the Duo Mobile App.

The NSURLErrorDomain -999 (and sometimes -1003, -1004, or -1200) message happens semi-frequently during Duo pushes. The error has only been reported on iOS devices. The error happens when there is a network error within the app during a push. A troubleshooting step to resolve the issue is to toggle wifi and use cellular data, or to switch to a different wifi network if available.

Duo's Documentation: https://help.duo.com/s/article/4010?language=en_US



Keywords:
multi factor authentication push mobile device wifi network data 999 1003 1004 1200 
Doc ID:
117266
Owned by:
Kyle A. in Identity and Access Management
Created:
2022-03-10
Updated:
2023-12-13
Sites:
DoIT Help Desk, Identity and Access Management