You configuration includes the proxy arp command already.
Can you confirm that you are using an ip address in the range of your interface but not the interface address? That is how I read your posts. This is the situation where proxy arp is required.
Also can you add this manual option to your vip so they don't do the auto detect option.
set interface ethernet3 vip xx.xx.xx.xx 37777 "Security" 192.168.0.108 set interface ethernet3 vip xx.xx.xx.xx + 8554 "Security2" 192.168.0.108 set interface ethernet3 vip xx.xx.xx.xx + 81 "Security3" 192.168.0.108 becomes: set interface ethernet3 vip xx.xx.xx.xx 37777 "Security" 192.168.0.108 manual set interface ethernet3 vip xx.xx.xx.xx + 8554 "Security2" 192.168.0.108 manual set interface ethernet3 vip xx.xx.xx.xx + 81 "Security3" 192.168.0.108 manual