IPSecVPN issue on Zyxel 1100 Firewall

I have two Zyxel 1100 series firewalls, one at location A and one at location B.  About two months ago, I set up IPSecVPNs between the sites and it worked great on the first try.  

After that, site 1 got some new static IPs so I went in and made the changes on the VPN gateway and entered the new IP.  

The VPN will not connect.  

In my log, I see the attempted connection and the Message is Match Default Rule, DROP and the note is ACCESS BLOCK.

I'm feeling like it's a Security Policy > Policy Control, but I have a rule allowing IPSecVPN out so I'm lost as to how to troubleshoot.

Can anyone lend a hand?

Thank you.

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