This seems to be a highly reproducible problem on my setup....and I'm sure someone else has posted a very similar experience it but I can't find their thread now.
I have a remote VPN (IPSEC) tunnel...using Shrewsoft client. When it's working it works great.
Most of the time, upon making the initial connection I cannot get any traffic through from the client. No pings, nothing. Tunnel status, SPI's etc all look normal.
If at this point I ping through the tunnel from the UTM end (either from the UTM itself or from up a machine connected to the interface, the ping gets through, and then seems to 'unblock' the traffic coming from the client end.
From that point on all is good until the next occasion.
Nothing untoward showing in ipsec or firewall logs.
Any ideas?
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