[vpn-help] Issues with passing traffic after VPN tunnel is established

[Roper, Andrew]

Jack,

It makes total sense that it does not work in Safe Mode. Safe Mode disables networking and only enables minimum services for OS functionality. I would even suspect that you'd have issues in Safe Mode with Networking as other dependent services would be offline. If, however, you are suggesting that a normal reboot does not resolve the issue but booting into Safe Mode and then a normal boot does then that is particularly curious. For this I have no explanation. As for continued troubleshooting, it would be necessary to perform a debug on the Netvanta and look for clues there and on the client I would make sure there are no conflicting VPN clients installed, AV isn't interfering, drivers are up to date and the connection is stable. Running some debug logs on the client side would also help in narrowing down the problem.

Regards,
Andrew

Sent from my iPhone

On Feb 22, 2012, at 1:43 PM, "Jack Rizk" <jrizk at hayesandassociates.com<mailto:jrizk at hayesandassociates.com>> wrote:

Hi,

We have a user that has a laptop with Windows 7 Professional on it.  They have the Shrew VPN Client 2.17.  The VPN gateway that they are connecting to is an Adtran Netvanta 3430 firewall.  The connection works sometimes and other times it doesn’t.  When it fails, it states that the tunnel is enabled, but you cannot pass traffic.  On the Netvanta side, it states that IKE is up, but IPSEC is down.  The last time we had issues with it, we tried to connect with a different windows 7 PC and it connected.  Then we booted up in safe mode with the original PC that failed the first time.  It was unable to connect when it was in safe mode, but when we took it out of safe mode, it could connect.  Any ideas?

Thanks,
Jack



Jack Rizk

Network Engineer

Hayes and Associates

336-969-1871 x108

jrizk at hayesandassociates.com<mailto:jrizk at hayesandassociates.com>

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