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" 
<[email protected]<mailto:[email protected]>> 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

[email protected]<mailto:[email protected]>

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