# Gprs - Context activation error

**URL:** <https://forum.sierrawireless.com/t/gprs-context-activation-error/1766>\
**Category:** Open AT\
**Created:** [December 10, 2007, 3:21pm UTC](https://forum.sierrawireless.com/t/gprs-context-activation-error/1766 "2007-12-10T15:21:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![szokea](https://avatars.discourse-cdn.com/v4/letter/s/dec6dc/32.png) [@szokea](https://forum.sierrawireless.com/u/szokea)\
**Post date:** [December 10, 2007, 3:21pm UTC](https://forum.sierrawireless.com/t/gprs-context-activation-error/1766/1 "2007-12-10T15:21:32Z")

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Hi i started with the gprs sample, it seemed everything ok, but there is a problem with at+wdata set to 1 and start the ping-ing method.

Is there any idea howto get forward?  
Many thanks.

> [@](#):
>
> Transfer Application started
> 
> at+cpin=\*\*\*\*  
> OK
> 
> at+gset?  
> +GSET: 1,“IP”,“net”,“”,“”,0,0  
> +GSET: 2,“”,“”,“”,“”,0,0  
> +GSET: 3,“”,“”,“”,“”,0,0  
> +GSET: 4,“”,“”,“”,“”,0,0
> 
> at+wdata?  
> +WDATA: 0,“81.182._ **.** _”,1,400,100,10  
> OK
> 
> at+wdata=1  
> Context activation error  
> ERROR

additionaly there is the TMT’s trace log:

> [@](#):
>
> 608.930 Trace 1 Total size : 400  
> 608.930 Trace 1 Packet size : 100  
> 608.930 Trace 1 Packet number : 4  
> 608.930 Trace 1 Last Packet size : 100  
> 608.930 Trace 1 Time between packets : 10 \* 100 ms  
> 608.930 Trace 1 GPRS Setup return : 0  
> 608.930 Trace 1 Embedded : Event receive 25  
> 608.930 Trace 1 PDP Ctxt Cid 1 Setup is OK  
> 609.446 Trace 1 Embedded : Event receive 23  
> 609.446 Trace 1 ADL\_GPRS\_EVENT\_ACTIVATE\_KO

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<div class="post-metadata">

**Author:** ![szokea](https://avatars.discourse-cdn.com/v4/letter/s/dec6dc/32.png) [@szokea](https://forum.sierrawireless.com/u/szokea)\
**Post date:** [March 18, 2008, 12:21pm UTC](https://forum.sierrawireless.com/t/gprs-context-activation-error/1766/2 "2008-03-18T12:21:13Z")

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I used a wrong parameter for gset 🙂

using the following wil work:

at+gset=1,“net”  
at+wdata=0,“81.182.\*\*\*.\*\*\*”,1,400,100,10 /_ip hided_/  
at+wdata=1