BACnet IP drive - Router

I was using the BACnet IP driver in Kepware to communicate to our HVAC system. We use a BAS router from BACnet IP to MSTP and it worked perfect. Now we switched to using the Ignition BACnet IP driver and I can configure the BACnet to MSTP, and can see the router but not the HVAC controller.

I need assistance being able to configure the gateway to passthrough to the MSTP network.

Please advice.

thank you,