I had a strange problem occur today between two Netgear IPSEC vpn’s one was an FVS336Gv2 and the other end was a DGFV338 where they just wouldn’t connect i kept getting ‘Phase 2 negotiation failed due to time up waiting for phase1. ESP (ip address)’ in the vpn logs after checking the connection setting at both ends and rebooting everything several times it just would not come up.
The strange thing was i had another vpn to another site that was working ok after the first reboot of the box it would appear the settings became corrupt somehow but the other strange things was i had to remove the settings from both firewalls and put them back in again to get it to connect