# Q2686 WIP GPRS connection problem

**URL:** <https://forum.sierrawireless.com/t/q2686-wip-gprs-connection-problem/1941>\
**Category:** Open AT\
**Created:** [February 26, 2008, 6:38pm UTC](https://forum.sierrawireless.com/t/q2686-wip-gprs-connection-problem/1941 "2008-02-26T18:38:22Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![imatveev13](https://avatars.discourse-cdn.com/v4/letter/i/fbc32d/32.png) [@imatveev13](https://forum.sierrawireless.com/u/imatveev13)\
**Post date:** [February 26, 2008, 6:38pm UTC](https://forum.sierrawireless.com/t/q2686-wip-gprs-connection-problem/1941/1 "2008-02-26T18:38:22Z")

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Hi everybody.

I’m porting my GPS/GPRS embedded app. from q2501 to q2686 and just starting to use WIP.

OpenAT and WIP versions:

at+wopen=2  
+WOPEN: 2,“AT v04.20”,“AT v04.20”

OK  
at+wipcfg=3  
WIP Soft v311 on Open AT OS v421  
Nov 29 2007 16:33:53 WIPlib:v3a05 WIPSoft:v3a02

When I connect to GPRS of a GSM provider that has no GPRS authentication(APN:“internet.nw”, user:"",password:"") everything works.

Problem starts when I try to connect to GPRS of a GSM provider that has GPRS authentication(APN:“[internet.mts.ru](http://internet.mts.ru)”, user:“mts”,password:“mts”).

Here is the log:

-f\_gprsStart- wip\_bearerSetOpts() OK  
-f\_gprsStart- wip\_bearerGetOpts():GPRS  
-f\_gprsStart- wip\_bearerGetOpts():internet.mts.ru  
-f\_gprsStart- wip\_bearerGetOpts():mts  
-f\_gprsStart- wip\_bearerGetOpts():mts  
-f\_gprsStart- wip\_bearerStart() OK  
13 -f\_gprsHndlr-  
-f\_GPRShndlr- 25 , Cid 1  
-f\_GPRShndlr- ADL\_GPRS\_EVENT\_SETUP\_OK  
13 -f\_gprsHndlr-  
-f\_GPRShndlr- 23 , Cid 1  
-f\_GPRShndlr- ADL\_GPRS\_EVENT\_ACTIVATE\_KO  
ERROR: -f\_GPRShndlr- ADL\_GPRS\_EVENT\_ACTIVATE\_KO the activation requested by the external application failed  
-f\_gprsWipBearerHndlr- WIP\_BEV\_CONN\_FAILED

The problem can be reprodused using WIP AT commands:  
at+wipcfg=1  
OK  
at+wipbr=1,6  
OK  
at+wipbr=2,6,11,“[internet.mts.ru](http://internet.mts.ru)”  
OK  
at+wipbr=2,6,0,“mts”  
OK  
at+wipbr=2,6,1,“mts”  
OK  
at+wipbr=2,6,12,1  
OK  
at+wipbr=4,6,0  
+CME ERROR: 812

+CME ERROR: 812 means:“bearer connection failure: GPRS network failure”

Please help.

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**Author:** ![imatveev13](https://avatars.discourse-cdn.com/v4/letter/i/fbc32d/32.png) [@imatveev13](https://forum.sierrawireless.com/u/imatveev13)\
**Post date:** [March 4, 2008, 12:54pm UTC](https://forum.sierrawireless.com/t/q2686-wip-gprs-connection-problem/1941/2 "2008-03-04T12:54:54Z")

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The problem was resolved by the new version of firmware(663c00\_full\_q2686h.dwl ) acquired from a distributor.

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**Author:** ![RealTimeGraphics](https://avatars.discourse-cdn.com/v4/letter/r/9d8465/32.png) [@RealTimeGraphics](https://forum.sierrawireless.com/u/RealTimeGraphics)\
**Post date:** [April 2, 2008, 2:17pm UTC](https://forum.sierrawireless.com/t/q2686-wip-gprs-connection-problem/1941/3 "2008-04-02T14:17:28Z")

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I have exactly the same problem could you tell me wher i can get this releas from as i cannot find it on the wavecom web site
