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"IPCP: timeout sending Config-Requests" - vodafone mobile connect 3g card



Hi,

I got a vodafone pcmcia mobile connect 3g/gprs datacard today. I tried it on my laptop running 3.9-stable. 
Previously, I used a siemens connect 2 air cf card to connect via gprs without problems and I used almost identical pppd scripts.

With the vodafone card (actually from www.OPTION.com) I'm not able to make a gprs connection as I get the following error after +/- 20 seconds:
Apr  4 21:08:14 nc6000 pppd[22150]: pppd 2.3.5 started by didier, uid 0
Apr  4 21:08:18 nc6000 pppd[22150]: Connect: ppp0 <--> /dev/ttyU0
Apr  4 21:08:48 nc6000 pppd[22150]: IPCP: timeout sending Config-Requests
Apr  4 21:08:54 nc6000 pppd[22150]: Connection terminated.

Here is the (partial) output of "usbdevs -v":
Controller /dev/usb4:
addr 1: full speed, self powered, config 1, OHCI root hub(0x0000), Opti(0x1045), rev 1.00
 port 1 addr 2: full speed, power 100 mA, config 1, Vodafone Mobile Connect Card - 3G(0x5000), Vodafone(0x0af0), rev 0.01
 port 2 powered

Here is my pppd gprs script (this script works with the siemens card):
/dev/ttyU0
115200
defaultroute
lock
noauth
debug
connect '/usr/sbin/chat -f /etc/ppp/peers/gprs.chat'

Here is the gprs chat script (it works with the siemens card).
ABORT BUSY
ABORT 'NO CARRIER'
ABORT VOICE
ABORT   "NO DIALTONE"
""      ATZ
OK      AT+CPIN="xxxx"
OK      AT+CGDCONT=1,"IP","web.pt.lu"
OK      ATDT*99***1#
'CONNECT'       '\c'
'TIMEOUT'       '5'

I had a look at the pppd man and tried the following 2 options:
ipcp-accept-local and 
ipcp-accept-remote, without success.

I must admit that I'm not very comfortable with pppd, so any help is welcome.

Thanks a lot
Didier



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