Cannot ping internal network via OpenVPN (under Untangle)

Using Untangle as the firewall. Internal network can access internet. I can access machines remotely via Teamviewer.

Remote users can ping UT/OpenVPN server IP address, but not access internal network via FQDN or IP.

Internet --> Comcast modem (10.1.10.1) --> UT server (10.1.10.60 / 172.16.2.1) --> 2019 Windows domain server (DNS and DHCP server) (172.16.2.10)

I attempted to put the modem into bridge mode, but they don't have a static IP and it kept messing up, so I put it back into router mode with firewall disabled. I configured a static route in the modem from 10.1.10.1 to 172.16.2.0

• I have configured the Comcast modem with port forwarding of 443 and 1194 UDP/TCP to the UT server.
• UT server is configured with it's own address space, and I have checked and unchecked NAT OpenVPN traffic.
• UT Group is configured for Full Tunnel and to push DNS of the internal DNS server.
• Exported network is configured for the internal private network of 172.168.2.0/24.