1 - Win 10 vpn client behind OPNsense firewall <--> EdgeRouter 4 (client site) = can connect.
2 - Win 10 vpn client behind OPNsense firewall <--> Meraki MX (client site) = can NOT connect.
3 - Win 10 vpn client behind iPhone hotspot (bypassing OPNsense) <--> Meraki MX (client site) = can connect.
If I do a Site-to-Site on #2, that also connects.
Any ideas why #2 will not connect?