How are they connected? can you ping each other? It’s possible to get them working. U can do EoIP depending on your existing config. You can also port forward. rearrange your routing table
Both networks are connected to the same RB but i have blocked them from seeing each other due to the one network being an internal network and the other being a guest network. the only thing i need working is the one PC which is a POS on the guest side must be able to see the server on the internal side.