S2S IPSec VPN between 9.402-7 (after update from 9.355) UTM and second 9.355 broken ipsec_starter no default route - cannot cope with %defaultroute!!!

Question

Hi, 
 yesterday we've updated our Office UTM from 9.355 to 9.402-7 using Up2Date GA Update. At first the UTM shutdown instead of restart. After a reboot the UTM worked again but the IPSec S2S VPN was broken and i cannot get it back to work. I see that one issue: 
 ipsec_starter[6789]: no default route - cannot cope with %defaultroute!!! 
 Afterwards it says "initiating main mode" and i can see the main mode on the 9.355 UTM: 
 Office VPN"[1] 91.64.xxx.xxx #35196524: responding to Main Mode from unknown peer 91.64.xx.xx 
 after some seconds the following message on the 9.355 master appears: 
 
 Office VPN"[1] 91.64.xxx.xxx #35272427: max number of retransmissions (2) reached STATE_MAIN_R1 
 But nothing happens then. The VPN does not come up. What can i do??

MartinSeener · Accepted Answer

I've managed to fix this by myself. I had to rekey both sides with their respective local RSA keys and check for the correct VPNID (hostname and IP Addr). Then the tunnel is back at work. 
 Btw. i only have a single S2S IPSec Tunnel on the 9.402 machine.

Andreasfilbir · Answer

maybe it is a but in this Version 9.402[st] 
 downgrade to 9.355 and wait for the next patch[:D]