# Crash on network drop while having the \`virtualAudioMic\` set **URL:** \ **Category:** macOS\ **Created:** [December 5, 2022, 4:09am UTC](https://devforum.zoom.us/t/crash-on-network-drop-while-having-the-virtualaudiomic-set/79718 "2022-12-05T04:09:22Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![rokgregoric](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/rokgregoric/32/40678_2.png) [@rokgregoric](https://devforum.zoom.us/u/rokgregoric)\ **Post date:** [December 5, 2022, 4:09am UTC](https://devforum.zoom.us/t/crash-on-network-drop-while-having-the-virtualaudiomic-set/79718/1 "2022-12-05T04:09:22Z")
**Description** The SDK crashes when the network connection drops while having the `virtualAudioMic` set. **Which macOS Video SDK version?** 1.5.3 (12615) **To Reproduce(If applicable)** Start network link conditioner on `100% Loss` profile. **Screenshots** ![Screenshot 2022-12-05 at 4.41.50 AM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/3/e/3ed5327832a218f286b3f08e4f6cd13d129139fb.jpeg) **Additional context** I tried a number of things to prevent the crash from happening. And the only thing that helps is to avoid setting `virtualAudioMic`. The virtual mic / `ZMVideoSDKAudioSender` is not being used while the network drops (not sending packets). The crash happens right after: `func onError(_ ErrorType: ZoomError, detail: Int32)` has been called. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [January 4, 2023, 2:09pm UTC](https://devforum.zoom.us/t/crash-on-network-drop-while-having-the-virtualaudiomic-set/79718/2 "2023-01-04T14:09:46Z")
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