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Old 12-03-2007, 12:54 PM   #1
boblegg
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Join Date: Nov 2007
Model: 8310
PIN: N/A
Carrier: T-Mobile UK
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Default VPN issue

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Running with T-Mobile UK tethered connection to laptop; access to corporate vpn using Cisco VPN client 4.0.3 (a).

BB 8310 is sending high number of Dead Peer Detection (DPD) calls which appear to overwhelm the Cisco client and stop it connecting; colleagues on O2 UK with the same setup do not have this level of DPD calls and connect through the VPN ok.

Anything on the BB that would account for this? Or is it a carrier question?

Bob
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Old 12-03-2007, 07:25 PM   #2
Ugg
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Other than the fact that your SIM is TMobile and other SIMs are O2, is everything else identical (i.e. same Blackberry model, same or similar software version)? I have seen VPN support vary with handheld OS version (normally newer ones support more features than older ones though, of course).

You may have already done this, but to rule out the Cisco client side of things I'd try using a known-not-to-cause a problem colleague's Blackberry and have them use yours as a test. That should pin it down to either the device+network or the client PC. If your devices are unlocked you could try swapping SIMs as well.

Unfortunately I don't think that I've ever used a Cisco VPN over a Blackberry connection (with either O2 or TMobile) so can't help answer the direct question.
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