GruensFroeschli,
Thank you again for your input.
1. When WAN is down, other inbound traffic is passing safely through OPT1. My loadbalancer is also working when WAN is down. Only VPN is not getting established.
2. Like you suggested, I removed the 2nd VPN server. And, I removed the "local xxx.xxx.xxx.xxx" from the custom options field for the remaining server. Now, I cannot connect on OPT1 interface even when WAN is up. With two servers, I was able to connect through OPT1 when WAN was up.
I must be missing something minor. Any help is greatly appreciated.
Thank you