# Understanding Streaming Stats - Inbound and Outbound Bitrate Dropped in the Middle of Event

**URL:** <https://community.wowza.com/t/understanding-streaming-stats-inbound-and-outbound-bitrate-dropped-in-the-middle-of-event/50121>\
**Category:** Wowza Video (Formerly Streaming Cloud)\
**Created:** [November 13, 2017, 2:45am UTC](https://community.wowza.com/t/understanding-streaming-stats-inbound-and-outbound-bitrate-dropped-in-the-middle-of-event/50121 "2017-11-13T02:45:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Eric\_West](https://avatars.discourse-cdn.com/v4/letter/e/9fc348/32.png) [@Eric\_West](https://community.wowza.com/u/Eric_West)\
**Post date:** [November 13, 2017, 2:45am UTC](https://community.wowza.com/t/understanding-streaming-stats-inbound-and-outbound-bitrate-dropped-in-the-middle-of-event/50121/1 "2017-11-13T02:45:27Z")

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Hello Wowza, I did a live stream today that was about 3.5 hours in length. About 2.5 hours into it viewers were experiencing a black screen. I checked my health stats in Wowza Cloud and it showed a dramatic drop in the inbound and outbound bitrates. I’m trying to understand what may have happened, was it an encoder problem, I use Wirecast or was it more likely a bandwidth problem with my AT&T Uverse account. We unfortunately only have a 3MB upload speed on a 25MB download. My stream is set to 480P at 1MP upload so there should be plenty of headroom, I’ve done a number or speed tests and usually get 2.8-3.1. I’ve never seen this happen before while streaming on this same network. I have screenshots of the bitrates from both Wowza Cloud and Wirecast showing the dip. The inbound was steady at 1MB then dropped to 100K for a couple minutes then back up. The outbound was around 2.1 MB and dropped to 400K.

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**Author:** ![Mac\_Hill](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/mac_hill/32/434_2.png) [@Mac\_Hill](https://community.wowza.com/u/Mac_Hill)\
**Post date:** [November 22, 2017, 3:46am UTC](https://community.wowza.com/t/understanding-streaming-stats-inbound-and-outbound-bitrate-dropped-in-the-middle-of-event/50121/2 "2017-11-22T03:46:02Z")

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Hello Eric,

Most likely this type of issue is related to the encoder or the path to the transcoder, but to be certain, I would encourage you to [submit a support request](https://www.wowza.com/support/open-ticket) so that we can obtain your account details and review this further for you.

Regards,

Mac

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**Author:** ![Eric\_West](https://avatars.discourse-cdn.com/v4/letter/e/9fc348/32.png) [@Eric\_West](https://community.wowza.com/u/Eric_West)\
**Post date:** [November 26, 2017, 3:55pm UTC](https://community.wowza.com/t/understanding-streaming-stats-inbound-and-outbound-bitrate-dropped-in-the-middle-of-event/50121/3 "2017-11-26T15:55:02Z")

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Thanks Mac, I did submit a support request to see if a Wowza engineer could look at it and give their input. I got a response and in general they could see a drop in input bandwidth being sent to Wowza. I had all other internet traffic in our building shut down so all I can think of is that it was an AT&T bandwidth issue for a couple of minutes.

Eric