Hello all,

I've got a problem that is driving me crazy and would appreciate any thoughts:

The situation arises out of the blue where a previously working Shrew client fails to establish the security association with the target firewall. In other words the VPN client connects and claims the tunnel is up (but its not). Looking at the Network tab there is a 0 for established security associations and of course the tunnel drops after a short while.

Researching the archives suggested that changing the policy generation to unique instead of auto might help but it did not. This problem happens on Windows XP computers, SP3, running Shrew 2.1.17 connecting to a WatchGuard xtm510 firewall.

Does anyone have any idea why a previously working client stops establishing a security association?

Thanks,

Howard Edin

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