I have separated home and office devices via different subnets. Home subnet is 10.0.0.X (secondary PC) and office subnet is 10.1.0.X (primary PC). I can successfully ping and remote desktop from my secondary laptop to primary PC.

But I am not able to connect from primary to secondary via multiplicity. Connectivity is like this below. When I traceroute, from primary PC I successfully hit till WiFi Router's WAN IP. I have configured port forwarding from primary PC IP to secondary laptop IP to allow incoming traffic from WAN port to reach secondary laptop IP.

Connection Setup: Secondary Laptop -> WiFi router -> Firewall Router -> Unmanaged Switch -> Primary PC.

My question is is it mandatory for both primary and secondary PCs to be in same subnet?

How likely it is for me to have successful connection on Multiplicity once I can ping from primary PC to secondary laptop successfully?

Do you see any issues with my setup in terms of Multiplicity connectivity between primary and secondary devices?

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