If it is configured correctly is should work, otherwise it will not.
If you configure the Network Interfaces > br0 to be a DHCP client
Also turn off the DHCP server.
When you plug into the home router is should get an address and DNS entry to reach the internet. You could then log into the home router to find the IP address that was assigned. Or you could scan the network from your PC to find the mac address on the label of the MTCAP.
https://www.multitech.com/documents/publications/software-guides/s000727–mPower-Edge-Intelligence-Conduit-AEP-software-guide.pdf
If you need more help with the settings feel free to open a ticket at support.multitech.com