# UDP error

**URL:** <https://forum.sierrawireless.com/t/udp-error/5158>\
**Category:** Open AT\
**Created:** [July 25, 2011, 3:31am UTC](https://forum.sierrawireless.com/t/udp-error/5158 "2011-07-25T03:31:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rudolfl](https://avatars.discourse-cdn.com/v4/letter/r/ecd19e/32.png) [@rudolfl](https://forum.sierrawireless.com/u/rudolfl)\
**Post date:** [July 25, 2011, 3:31am UTC](https://forum.sierrawireless.com/t/udp-error/5158/1 "2011-07-25T03:31:59Z")

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Hi, all

I am trying to use UDP to spit out debug information. As I send data out, UDP stops working and I can see following error on console (WIP Debugging feature is enabled):  
ERRLOG …/src/ch\_udp.c:831: returned res

TCP connections work fine after that error, but UDP do not. I think I have to re-initialise the channel, but I really want to know what this error means and how to avoid it.

Thanks,  
Rudolf

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [July 25, 2011, 6:36am UTC](https://forum.sierrawireless.com/t/udp-error/5158/2 "2011-07-25T06:36:38Z")

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> [@rudolfl](#):
>
> following error on console (WIP Debugging feature is enabled):  
> ERRLOG …/src/ch\_udp.c:831: returned resf

That’s an internal error within WIP - you’re going to have to contact SiWi for details.