@Virgo thank you for the suggestion. Turned out that it was a couple of things (Private vs Public Network which Windows switched around, and blocked pings), as well as a hard coded device with one of...

Hi, I just configured 2 ER605 in 2 different office locations. I managed to get the LAN-to-LAN IPSec to connect appropriately after putting each router as the DMZ device to ensure all ports/traffic...