# Live streaming issue on 3G/4G
**URL:** https://community.wowza.com/t/live-streaming-issue-on-3g-4g/52885
**Category:** Wowza GoCoder SDK
**Created:** [February 21, 2019, 5:55pm UTC](https://community.wowza.com/t/live-streaming-issue-on-3g-4g/52885 "2019-02-21T17:55:14Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Adnan\_Obaid](https://community.wowza.com/u/Adnan_Obaid)
#### Post date: [February 21, 2019, 5:55pm UTC](https://community.wowza.com/t/live-streaming-issue-on-3g-4g/52885/1 "2019-02-21T17:55:14Z")
We are using GoCoder SDK 1.6 in our Android app for live streaming.
Live streaming works fine when using the wifi network. While on some 3G/4G data networks, no video is displayed only black screen is displayed.
Want to know any network requirement to meet for live streaming to work?
If any port forwarding is required?
What are the defaults ports used in streaming?
---
### Author:  [@Alex\_C](https://community.wowza.com/u/Alex_C)
#### Post date: [March 28, 2019, 12:53am UTC](https://community.wowza.com/t/live-streaming-issue-on-3g-4g/52885/2 "2019-03-28T00:53:47Z")
Hello @Adnan Obaid,
By default, GoCoder would be using 1935 port to push the stream to Wowza Streaming Engine.
The issue could also be related to the bitrate at which the video and audio are being encoded. Try lowering the bitrate for video and then see if the same issues happen again.
Regards,
Alex C.
---
### Author:  [@Bhavesh\_Desai](https://community.wowza.com/u/Bhavesh_Desai)
#### Post date: [June 25, 2019, 7:50am UTC](https://community.wowza.com/t/live-streaming-issue-on-3g-4g/52885/3 "2019-06-25T07:50:11Z")
Any update on this, i am facing same issue with mobile data.
---
### Author:  [@Adam\_Kalocsai](https://community.wowza.com/u/Adam_Kalocsai)
#### Post date: [December 21, 2019, 10:01am UTC](https://community.wowza.com/t/live-streaming-issue-on-3g-4g/52885/4 "2019-12-21T10:01:49Z")
I was facing the same issue and I tried the host address: [origin.cdn.wowza.com](http://origin.cdn.wowza.com) for broadcasting and [edge.cnd.wowza.com](http://edge.cnd.wowza.com) for playback and now it works on 4G as well.
---
### Author:  [@Jason\_Tuchler](https://community.wowza.com/u/Jason_Tuchler)
#### Post date: [January 3, 2020, 6:45pm UTC](https://community.wowza.com/t/live-streaming-issue-on-3g-4g/52885/5 "2020-01-03T18:45:34Z")
Hello @Adam Kalocsai
That is the correct way to stream ULL streams. Broadcast should always be going to the [origin.cdn.wowza.com](http://origin.cdn.wowza.com) endpoint and playback from the [edge.cdn.wowza.com](http://edge.cdn.wowza.com) endpoint.
This will ensure that the played back stream is pulling from and edge location closest to the end-user.
Regards,
JasonT