RVS4000 to RV042 VPN connection drops intermittantly

Unanswered Question
Apr 27th, 2010

My environment is as follows, 4 sites , 3 with rv042's and one with an rvs4000. The rv042's have been working together for years without any problem, I recently added the new site with the rvs4000 and while the vpn will initially engage, at, what is so far intermittant, intervals, the rvs4000 drops the vpn connnection to the other sites. If I wait a little while it usually will come back up on its own. I tried enabling KeepAlive on the rv042 but no difference. I get the following in the rvs4000 log:

Apr 27 12:19:35 - [VPN Log]: packet from 75.99.74.114:500: received Vendor ID payload [Dead Peer Detection]
Apr 27 12:19:35 - [VPN Log]: "Always-Bohem" #34: responding to Main Mode
Apr 27 12:19:35 - [VPN Log]: "Always-Bohem" #34: transition from state STATE_MAIN_R0 to state STATE_MAIN_R1
Apr 27 12:19:35 - [VPN Log]: "Always-Bohem" #34: STATE_MAIN_R1: sent MR1, expecting MI2
Apr 27 12:19:35 - [VPN Log]: packet from 98.116.160.119:500: received Vendor ID payload [Dead Peer Detection]
Apr 27 12:19:35 - [VPN Log]: "Autumn1" #35: responding to Main Mode
Apr 27 12:19:35 - [VPN Log]: "Autumn1" #35: transition from state STATE_MAIN_R0 to state STATE_MAIN_R1
Apr 27 12:19:35 - [VPN Log]: "Autumn1" #35: STATE_MAIN_R1: sent MR1, expecting MI2
Apr 27 12:19:35 - [VPN Log]: packet from 75.99.74.114:500: phase 1 message is part of an unknown exchange
Apr 27 12:19:35 - [VPN Log]: packet from 75.99.74.114:500: phase 1 message is part of an unknown exchange
Apr 27 12:19:35 - [VPN Log]: packet from 75.99.74.114:500: phase 1 message is part of an unknown exchange
Apr 27 12:19:35 - [VPN Log]: packet from 98.116.160.119:500: received Vendor ID payload [Dead Peer Detection]
Apr 27 12:19:35 - [VPN Log]: "Autumn1" #36: responding to Main Mode
Apr 27 12:19:35 - [VPN Log]: "Autumn1" #36: transition from state STATE_MAIN_R0 to state STATE_MAIN_R1
Apr 27 12:19:35 - [VPN Log]: "Autumn1" #36: STATE_MAIN_R1: sent MR1, expecting MI2
Apr 27 12:19:35 - [VPN Log]: "Always-Bohem" #30: max number of retransmissions (2) reached STATE_MAIN_R1

I have a GOTOMYPC session that stays connected through all the VPN disconnects

Anyone have any ideas, also is there a VPN log on the rv042, I see system, incoming and outgoing logs but nothing specific to the vpn connection like on the rvs4000.

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