# Zoom SDK iOS Authentication Error

**URL:** <https://devforum.zoom.us/t/zoom-sdk-ios-authentication-error/115653>\
**Category:** Video SDK\
**Created:** [August 14, 2024, 5:14pm UTC](https://devforum.zoom.us/t/zoom-sdk-ios-authentication-error/115653 "2024-08-14T17:14:38Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![rodrigo.miranda](https://avatars.discourse-cdn.com/v4/letter/r/8797f3/32.png) [@rodrigo.miranda](https://devforum.zoom.us/u/rodrigo.miranda)\
**Post date:** [August 14, 2024, 5:14pm UTC](https://devforum.zoom.us/t/zoom-sdk-ios-authentication-error/115653/1 "2024-08-14T17:14:38Z")

</div>

Hi everyone,

I’m having an issue with the Swift demo for the Zoom SDK

I successfully set up the `AuthService` with my `jwtToken`. However, when I try to join a meeting by calling the function:

```auto
swiftCopy codemeetingService.joinMeeting(with: joinMeetingParameters)

```

I receive the following error in the logs:

```auto
cssCopy codenw_application_id_create_self NECP_CLIENT_ACTION_GET_SIGNED_CLIENT_ID [80: Authentication error]Failed to resolve host network app id

```

This error seems to be related to an authentication issue or a failure to resolve the network app ID. As a result, I’m unable to join the call on the front-end.

Has anyone encountered this issue or have any ideas on what might be causing it? I haven’t been able to find any solutions online.

Thanks in advance for your help!

---

<div class="post-metadata">

**Author:** ![rodrigo.miranda](https://avatars.discourse-cdn.com/v4/letter/r/8797f3/32.png) [@rodrigo.miranda](https://devforum.zoom.us/u/rodrigo.miranda)\
**Post date:** [August 14, 2024, 5:16pm UTC](https://devforum.zoom.us/t/zoom-sdk-ios-authentication-error/115653/2 "2024-08-14T17:16:12Z")

</div>

Meeting APK version: v6.1.5.16935  
XCode version: 15.4

---

<div class="post-metadata">

**Author:** ![kellyjandrews](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kellyjandrews/32/51599_2.png) [@kellyjandrews](https://devforum.zoom.us/u/kellyjandrews)\
**Post date:** [August 15, 2024, 11:07am UTC](https://devforum.zoom.us/t/zoom-sdk-ios-authentication-error/115653/4 "2024-08-15T11:07:11Z")

</div>

Hi there 👋

I’m not exactly sure what the error is from, but I will investigate further and try and find out what the cause is for you. Thanks!